Auto merge of #24358 - servo-wpt-sync:wpt_update_03-10-2019, r=servo-wpt-sync

Sync WPT with upstream (03-10-2019) Automated downstream sync of changes from upstream as of 03-10-2019. [no-wpt-sync] r? @servo-wpt-sync  --- This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24358)
author: bors-servo <lbergstrom+bors@mozilla.com> 2019-10-04 01:26:34 -0400
committer: GitHub <noreply@github.com> 2019-10-04 01:26:34 -0400
commit: 1ab4dd135121291d838b0b764617f7aaa865cb90 (patch)
tree: a0cd579b111f1bb7e35d4dee7804e35cdf6bd85c
parent: bbc94d256c65402afd435c17a3f6c6aaf021342f (diff)
parent: 555167ffdb0067e0b2491a255e0ea7d61f0ad7a8 (diff)
download: servo-1ab4dd135121291d838b0b764617f7aaa865cb90.tar.gz
servo-1ab4dd135121291d838b0b764617f7aaa865cb90.zip
141 files changed, 3097 insertions, 1282 deletions
diff --git a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
index 76b398963ae..a9e46713244 100644
--- a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -7,7 +7,7 @@
     expected: FAIL
 
   [Opening a blob URL in a new window immediately before revoking it works.]
-    expected: FAIL
+    expected: TIMEOUT
 
   [Opening a blob URL in a noopener about:blank window immediately before revoking it works.]
     expected: FAIL
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 7182b446c23..30fa6ef6cc5 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -76551,6 +76551,18 @@
      {}
     ]
    ],
+   "css/CSS2/positioning/abspos-block-level-001.html": [
+    [
+     "css/CSS2/positioning/abspos-block-level-001.html",
+     [
+      [
+       "/css/CSS2/positioning/abspos-block-level-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/CSS2/positioning/abspos-containing-block-001.xht": [
     [
      "css/CSS2/positioning/abspos-containing-block-001.xht",
@@ -80091,6 +80103,18 @@
      {}
     ]
    ],
+   "css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html": [
+    [
+     "css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html",
+     [
+      [
+       "/css/CSS2/reference/ref-filled-green-100px-square.xht",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/CSS2/positioning/top-004.xht": [
     [
      "css/CSS2/positioning/top-004.xht",
@@ -143633,9 +143657,9 @@
      {}
     ]
    ],
-   "css/css-tables/calc-percent-plus-0px.html": [
+   "css/css-tables/calc-percent-plus-0px-auto.html": [
     [
-     "css/css-tables/calc-percent-plus-0px.html",
+     "css/css-tables/calc-percent-plus-0px-auto.html",
      [
       [
        "/css/css-tables/calc-percent-plus-0px-ref.html",
@@ -143645,6 +143669,18 @@
      {}
     ]
    ],
+   "css/css-tables/calc-percent-plus-0px-fixed.html": [
+    [
+     "css/css-tables/calc-percent-plus-0px-fixed.html",
+     [
+      [
+       "/css/css-tables/calc-percent-plus-0px-fixed-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-tables/dynamic-table-cell-height.html": [
     [
      "css/css-tables/dynamic-table-cell-height.html",
@@ -145078,7 +145114,7 @@
      "css/css-text/hyphens/hyphens-out-of-flow-001.html",
      [
       [
-       "/css/css-text/hyphens/reference/hyphens-span-001-ref.html",
+       "/css/css-text/hyphens/reference/hyphens-out-of-flow-001-ref.html",
        "=="
       ]
      ],
@@ -185135,6 +185171,18 @@
      {}
     ]
    ],
+   "css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008.xhtml": [
+    [
+     "css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008.xhtml",
+     [
+      [
+       "/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008-ref.xhtml",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-horiz-001-block.xhtml": [
     [
      "css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-horiz-001-block.xhtml",
@@ -197711,6 +197759,18 @@
      {}
     ]
    ],
+   "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-fixpos-cb-translate-1.html": [
+    [
+     "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-fixpos-cb-translate-1.html",
+     [
+      [
+       "/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/green-square-100-by-100-offset-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-clip-path-1.html": [
     [
      "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-clip-path-1.html",
@@ -197843,6 +197903,18 @@
      {}
     ]
    ],
+   "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-translate-1.html": [
+    [
+     "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-translate-1.html",
+     [
+      [
+       "/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/green-square-100-by-100-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-z-index-1.html": [
     [
      "css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-z-index-1.html",
@@ -202983,6 +203055,18 @@
      {}
     ]
    ],
+   "mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative.html": [
+    [
+     "mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative.html",
+     [
+      [
+       "/mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "mathml/presentation-markup/fractions/frac-linethickness-001.html": [
     [
      "mathml/presentation-markup/fractions/frac-linethickness-001.html",
@@ -203151,6 +203235,18 @@
      {}
     ]
    ],
+   "mathml/presentation-markup/mrow/legacy-mfenced-element-001.html": [
+    [
+     "mathml/presentation-markup/mrow/legacy-mfenced-element-001.html",
+     [
+      [
+       "/mathml/presentation-markup/mrow/legacy-mfenced-element-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "mathml/presentation-markup/mrow/legacy-mrow-like-elements-002.html": [
     [
      "mathml/presentation-markup/mrow/legacy-mrow-like-elements-002.html",
@@ -203283,6 +203379,18 @@
      {}
     ]
    ],
+   "mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative.html": [
+    [
+     "mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative.html",
+     [
+      [
+       "/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "mathml/presentation-markup/scripts/underover-legacy-align-attribute-001.html": [
     [
      "mathml/presentation-markup/scripts/underover-legacy-align-attribute-001.html",
@@ -210165,10 +210273,7 @@
    ".github/META.yml": [
     []
    ],
-   ".github/workflows/pull_request.yml": [
-    []
-   ],
-   ".github/workflows/push-build-publish-documentation-website.yml": [
+   ".github/workflows/build-publish-documentation-website.yml": [
     []
    ],
    ".github/workflows/push-build-release-manifest.yml": [
@@ -227607,6 +227712,9 @@
    "cookie-store/serviceworker_cookieStore_subscriptions_mismatch.js": [
     []
    ],
+   "cookie-store/serviceworker_cookieStore_subscriptions_reset.sub.js": [
+    []
+   ],
    "cookies/META.yml": [
     []
    ],
@@ -236304,6 +236412,9 @@
    "css/CSS2/positioning/abspos-028-ref.xht": [
     []
    ],
+   "css/CSS2/positioning/abspos-block-level-001-ref.html": [
+    []
+   ],
    "css/CSS2/positioning/abspos-containing-block-001-ref.xht": [
     []
    ],
@@ -253542,6 +253653,9 @@
    "css/css-tables/border-conflict-resolution-ref.html": [
     []
    ],
+   "css/css-tables/calc-percent-plus-0px-fixed-ref.html": [
+    []
+   ],
    "css/css-tables/calc-percent-plus-0px-ref.html": [
     []
    ],
@@ -253857,6 +253971,9 @@
    "css/css-text/hyphens/reference/hyphens-auto-001-ref.html": [
     []
    ],
+   "css/css-text/hyphens/reference/hyphens-out-of-flow-001-ref.html": [
+    []
+   ],
    "css/css-text/hyphens/reference/hyphens-overflow-001-ref.html": [
     []
    ],
@@ -261546,6 +261663,9 @@
    "css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-007-ref.xhtml": [
     []
    ],
+   "css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008-ref.xhtml": [
+    []
+   ],
    "css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-horiz-001-ref.xhtml": [
     []
    ],
@@ -272136,6 +272256,9 @@
    "html/semantics/scripting-1/the-script-element/is-script-goal.js": [
     []
    ],
+   "html/semantics/scripting-1/the-script-element/json-module/README.md": [
+    []
+   ],
    "html/semantics/scripting-1/the-script-element/json-module/array.json": [
     []
    ],
@@ -274239,6 +274362,9 @@
    "mathml/presentation-markup/fractions/frac-default-padding-ref.html": [
     []
    ],
+   "mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative-ref.html": [
+    []
+   ],
    "mathml/presentation-markup/fractions/frac-linethickness-001-ref.html": [
     []
    ],
@@ -274281,6 +274407,9 @@
    "mathml/presentation-markup/menclose/legacy-menclose-radical-notation-ref.html": [
     []
    ],
+   "mathml/presentation-markup/mrow/legacy-mfenced-element-001-ref.html": [
+    []
+   ],
    "mathml/presentation-markup/mrow/legacy-mrow-like-elements-002-ref.html": [
     []
    ],
@@ -274314,6 +274443,9 @@
    "mathml/presentation-markup/radicals/radical-rendering-from-in-flow-ref.html": [
     []
    ],
+   "mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative-ref.html": [
+    []
+   ],
    "mathml/presentation-markup/scripts/underover-legacy-align-attribute-001-ref.html": [
     []
    ],
@@ -275532,6 +275664,9 @@
    "native-file-system/script-tests/FileSystemDirectoryHandle-getDirectory.js": [
     []
    ],
+   "native-file-system/script-tests/FileSystemDirectoryHandle-getEntries.js": [
+    []
+   ],
    "native-file-system/script-tests/FileSystemDirectoryHandle-getFile.js": [
     []
    ],
@@ -281694,12 +281829,6 @@
    "tools/ci/tests/test_run_tc.py": [
     []
    ],
-   "tools/ci/tests/test_update_pr_preview.py": [
-    []
-   ],
-   "tools/ci/update_pr_preview.py": [
-    []
-   ],
    "tools/ci/website_build.sh": [
     []
    ],
@@ -281712,6 +281841,12 @@
    "tools/docker/Dockerfile": [
     []
    ],
+   "tools/docker/Dockerfile.webkitgtk": [
+    []
+   ],
+   "tools/docker/README.md": [
+    []
+   ],
    "tools/docker/__init__.py": [
     []
    ],
@@ -288840,6 +288975,9 @@
    "webxr/resources/webxr_util.js": [
     []
    ],
+   "webxr/webxr_feature_policy.https.html.headers": [
+    []
+   ],
    "workers/META.yml": [
     []
    ],
@@ -308441,6 +308579,12 @@
      }
     ]
    ],
+   "compat/webkit-gradient-comma.html": [
+    [
+     "compat/webkit-gradient-comma.html",
+     {}
+    ]
+   ],
    "compat/webkit-radial-gradient-radii.html": [
     [
      "compat/webkit-radial-gradient-radii.html",
@@ -311896,6 +312040,12 @@
      {}
     ]
    ],
+   "cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html": [
+    [
+     "cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html",
+     {}
+    ]
+   ],
    "cookies/cookie-enabled-noncookie-frame.html": [
     [
      "cookies/cookie-enabled-noncookie-frame.html",
@@ -313831,6 +313981,18 @@
      {}
     ]
    ],
+   "css/css-backgrounds/animations/background-position-x-interpolation.html": [
+    [
+     "css/css-backgrounds/animations/background-position-x-interpolation.html",
+     {}
+    ]
+   ],
+   "css/css-backgrounds/animations/background-position-y-interpolation.html": [
+    [
+     "css/css-backgrounds/animations/background-position-y-interpolation.html",
+     {}
+    ]
+   ],
    "css/css-backgrounds/animations/background-size-interpolation.html": [
     [
      "css/css-backgrounds/animations/background-size-interpolation.html",
@@ -313879,6 +314041,12 @@
      {}
     ]
    ],
+   "css/css-backgrounds/animations/box-shadow-interpolation.html": [
+    [
+     "css/css-backgrounds/animations/box-shadow-interpolation.html",
+     {}
+    ]
+   ],
    "css/css-backgrounds/background-331.html": [
     [
      "css/css-backgrounds/background-331.html",
@@ -319855,6 +320023,12 @@
      {}
     ]
    ],
+   "css/css-overflow/overflow-padding.html": [
+    [
+     "css/css-overflow/overflow-padding.html",
+     {}
+    ]
+   ],
    "css/css-overflow/overflow-shorthand-001.html": [
     [
      "css/css-overflow/overflow-shorthand-001.html",
@@ -321031,6 +321205,12 @@
      {}
     ]
    ],
+   "css/css-scroll-anchoring/scroll-padding-affects-anchoring.html": [
+    [
+     "css/css-scroll-anchoring/scroll-padding-affects-anchoring.html",
+     {}
+    ]
+   ],
    "css/css-scroll-anchoring/start-edge-in-block-layout-direction.html": [
     [
      "css/css-scroll-anchoring/start-edge-in-block-layout-direction.html",
@@ -322603,6 +322783,12 @@
      {}
     ]
    ],
+   "css/css-tables/auto-layout-calc-width-001.html": [
+    [
+     "css/css-tables/auto-layout-calc-width-001.html",
+     {}
+    ]
+   ],
    "css/css-tables/border-spacing-included-in-sizes-001.html": [
     [
      "css/css-tables/border-spacing-included-in-sizes-001.html",
@@ -323809,12 +323995,6 @@
      {}
     ]
    ],
-   "css/css-text/i18n/css3-text-line-break-baspglwj-094.html": [
-    [
-     "css/css-text/i18n/css3-text-line-break-baspglwj-094.html",
-     {}
-    ]
-   ],
    "css/css-text/i18n/css3-text-line-break-baspglwj-095.html": [
     [
      "css/css-text/i18n/css3-text-line-break-baspglwj-095.html",
@@ -325009,6 +325189,12 @@
      {}
     ]
    ],
+   "css/css-text/white-space/trailing-space-position-001.html": [
+    [
+     "css/css-text/white-space/trailing-space-position-001.html",
+     {}
+    ]
+   ],
    "css/css-text/white-space/white-space-collapse-000.html": [
     [
      "css/css-text/white-space/white-space-collapse-000.html",
@@ -329715,6 +329901,18 @@
      {}
     ]
    ],
+   "css/cssom-view/table-border-collapse-client-width-height.html": [
+    [
+     "css/cssom-view/table-border-collapse-client-width-height.html",
+     {}
+    ]
+   ],
+   "css/cssom-view/table-border-separate-client-width-height.html": [
+    [
+     "css/cssom-view/table-border-separate-client-width-height.html",
+     {}
+    ]
+   ],
    "css/cssom-view/table-client-props.html": [
     [
      "css/cssom-view/table-client-props.html",
@@ -329733,6 +329931,12 @@
      {}
     ]
    ],
+   "css/cssom-view/table-with-border-client-width-height.html": [
+    [
+     "css/cssom-view/table-with-border-client-width-height.html",
+     {}
+    ]
+   ],
    "css/cssom-view/ttwf-js-cssomview-getclientrects-length.html": [
     [
      "css/cssom-view/ttwf-js-cssomview-getclientrects-length.html",
@@ -353607,9 +353811,9 @@
      {}
     ]
    ],
-   "html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.tentative.html": [
+   "html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html": [
     [
-     "html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.tentative.html",
+     "html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html",
      {}
     ]
    ],
@@ -360031,21 +360235,21 @@
      {}
     ]
    ],
-   "html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html": [
+   "html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.tentative.html": [
     [
-     "html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html",
+     "html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.tentative.html",
      {}
     ]
    ],
-   "html/semantics/scripting-1/the-script-element/json-module/module.html": [
+   "html/semantics/scripting-1/the-script-element/json-module/module.tentative.html": [
     [
-     "html/semantics/scripting-1/the-script-element/json-module/module.html",
+     "html/semantics/scripting-1/the-script-element/json-module/module.tentative.html",
      {}
     ]
    ],
-   "html/semantics/scripting-1/the-script-element/json-module/non-object.any.js": [
+   "html/semantics/scripting-1/the-script-element/json-module/non-object.tentative.any.js": [
     [
-     "html/semantics/scripting-1/the-script-element/json-module/non-object.any.html",
+     "html/semantics/scripting-1/the-script-element/json-module/non-object.tentative.any.html",
      {
       "script_metadata": [
        [
@@ -360056,7 +360260,7 @@
      }
     ],
     [
-     "html/semantics/scripting-1/the-script-element/json-module/non-object.any.serviceworker.html",
+     "html/semantics/scripting-1/the-script-element/json-module/non-object.tentative.any.serviceworker.html",
      {
       "script_metadata": [
        [
@@ -360067,7 +360271,7 @@
      }
     ],
     [
-     "html/semantics/scripting-1/the-script-element/json-module/non-object.any.sharedworker.html",
+     "html/semantics/scripting-1/the-script-element/json-module/non-object.tentative.any.sharedworker.html",
      {
       "script_metadata": [
        [
@@ -360078,7 +360282,7 @@
      }
     ],
     [
-     "html/semantics/scripting-1/the-script-element/json-module/non-object.any.worker.html",
+     "html/semantics/scripting-1/the-script-element/json-module/non-object.tentative.any.worker.html",
      {
       "script_metadata": [
        [
@@ -360089,21 +360293,21 @@
      }
     ]
    ],
-   "html/semantics/scripting-1/the-script-element/json-module/parse-error.html": [
+   "html/semantics/scripting-1/the-script-element/json-module/parse-error.tentative.html": [
     [
-     "html/semantics/scripting-1/the-script-element/json-module/parse-error.html",
+     "html/semantics/scripting-1/the-script-element/json-module/parse-error.tentative.html",
      {}
     ]
    ],
-   "html/semantics/scripting-1/the-script-element/json-module/utf8.html": [
+   "html/semantics/scripting-1/the-script-element/json-module/utf8.tentative.html": [
     [
-     "html/semantics/scripting-1/the-script-element/json-module/utf8.html",
+     "html/semantics/scripting-1/the-script-element/json-module/utf8.tentative.html",
      {}
     ]
    ],
-   "html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html": [
+   "html/semantics/scripting-1/the-script-element/json-module/valid-content-type.tentative.html": [
     [
-     "html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html",
+     "html/semantics/scripting-1/the-script-element/json-module/valid-content-type.tentative.html",
      {}
     ]
    ],
@@ -370586,6 +370790,31 @@
      }
     ]
    ],
+   "native-file-system/native_FileSystemDirectoryHandle-getEntries.tentative.https.manual.window.js": [
+    [
+     "native-file-system/native_FileSystemDirectoryHandle-getEntries.tentative.https.manual.window.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "/resources/testdriver.js"
+       ],
+       [
+        "script",
+        "resources/test-helpers.js"
+       ],
+       [
+        "script",
+        "resources/native-fs-test-helpers.js"
+       ],
+       [
+        "script",
+        "script-tests/FileSystemDirectoryHandle-getEntries.js"
+       ]
+      ]
+     }
+    ]
+   ],
    "native-file-system/native_FileSystemDirectoryHandle-getFile.tentative.https.manual.window.js": [
     [
      "native-file-system/native_FileSystemDirectoryHandle-getFile.tentative.https.manual.window.html",
@@ -370701,6 +370930,46 @@
      }
     ]
    ],
+   "native-file-system/sandboxed_FileSystemDirectoryHandle-getEntries.tentative.https.any.js": [
+    [
+     "native-file-system/sandboxed_FileSystemDirectoryHandle-getEntries.tentative.https.any.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "resources/test-helpers.js"
+       ],
+       [
+        "script",
+        "resources/sandboxed-fs-test-helpers.js"
+       ],
+       [
+        "script",
+        "script-tests/FileSystemDirectoryHandle-getEntries.js"
+       ]
+      ]
+     }
+    ],
+    [
+     "native-file-system/sandboxed_FileSystemDirectoryHandle-getEntries.tentative.https.any.worker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "resources/test-helpers.js"
+       ],
+       [
+        "script",
+        "resources/sandboxed-fs-test-helpers.js"
+       ],
+       [
+        "script",
+        "script-tests/FileSystemDirectoryHandle-getEntries.js"
+       ]
+      ]
+     }
+    ]
+   ],
    "native-file-system/sandboxed_FileSystemDirectoryHandle-getFile.tentative.https.any.js": [
     [
      "native-file-system/sandboxed_FileSystemDirectoryHandle-getFile.tentative.https.any.html",
@@ -405305,6 +405574,12 @@
      {}
     ]
    ],
+   "svg/animations/interval-restart-events.html": [
+    [
+     "svg/animations/interval-restart-events.html",
+     {}
+    ]
+   ],
    "svg/animations/keysplines-x-limits.html": [
     [
      "svg/animations/keysplines-x-limits.html",
@@ -418752,6 +419027,100 @@
      {}
     ]
    ],
+   "websockets/stream-tentative/abort.any.js": [
+    [
+     "websockets/stream-tentative/abort.any.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "script",
+        "/common/utils.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/abort.any.serviceworker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "script",
+        "/common/utils.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/abort.any.sharedworker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "script",
+        "/common/utils.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ],
+    [
+     "websockets/stream-tentative/abort.any.worker.html",
+     {
+      "script_metadata": [
+       [
+        "script",
+        "../websocket.sub.js"
+       ],
+       [
+        "script",
+        "resources/url-constants.js"
+       ],
+       [
+        "script",
+        "/common/utils.js"
+       ],
+       [
+        "global",
+        "window,worker"
+       ]
+      ]
+     }
+    ]
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    "websockets/stream-tentative/backpressure-receive.any.js": [
     [
      "websockets/stream-tentative/backpressure-receive.any.html",
@@ -420467,6 +420836,12 @@
      {}
     ]
    ],
+   "webxr/getViewerPose_emulatedPosition.https.html": [
+    [
+     "webxr/getViewerPose_emulatedPosition.https.html",
+     {}
+    ]
+   ],
    "webxr/idlharness.https.window.js": [
     [
      "webxr/idlharness.https.window.html",
@@ -420526,6 +420901,12 @@
      {}
     ]
    ],
+   "webxr/webxr_feature_policy.https.html": [
+    [
+     "webxr/webxr_feature_policy.https.html",
+     {}
+    ]
+   ],
    "webxr/xrBoundedReferenceSpace_updates.https.html": [
     [
      "webxr/xrBoundedReferenceSpace_updates.https.html",
@@ -420640,6 +421021,12 @@
      {}
     ]
    ],
+   "webxr/xrInputSource_emulatedPosition.https.html": [
+    [
+     "webxr/xrInputSource_emulatedPosition.https.html",
+     {}
+    ]
+   ],
    "webxr/xrInputSource_gamepad_disconnect.https.html": [
     [
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@@ -446479,15 +446866,11 @@
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-   "support"
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-  ".github/workflows/pull_request.yml": [
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+   "19878fa5991f4828d18df719f2eb51566fd4dfcb",
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-  ".github/workflows/push-build-publish-documentation-website.yml": [
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+  ".github/workflows/build-publish-documentation-website.yml": [
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@@ -454655,7 +455038,7 @@
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   "animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html": [
-   "6f981854d38877d42b1c7b63afdb9ec989a32d42",
+   "7dea4609b942c9b3fa00313ca9c1e4e56b83a537",
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@@ -454679,7 +455062,7 @@
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   "animation-worklet/worklet-animation-with-scroll-timeline.https.html": [
-   "000517162af20406e39831afc0b6cefa0b367f2c",
+   "7006f8f84a695924c1d341f2725c05b4676c10e1",
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@@ -458442,6 +458825,10 @@
    "06e728342cdb63a72b420423b40b6e32ae3e2162",
    "reftest"
   ],
+  "compat/webkit-gradient-comma.html": [
+   "b288a9a43fe8eba26a4ef37bd5439cbe75047885",
+   "testharness"
+  ],
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@@ -458459,7 +458846,7 @@
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-   "bff414a44e2aeff1276d99ca015288142de09f4e",
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@@ -479226,6 +479613,14 @@
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+   "support"
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+  "cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html": [
+   "a0923548c78d5b25aa9efe521aa5f341166fef9c",
+   "testharness"
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    "support"
@@ -517478,6 +517873,14 @@
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    "reftest"
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+  "css/CSS2/positioning/abspos-block-level-001-ref.html": [
+   "58f605dc7475d85e9cf03e2d1be55aab3bb200cf",
+   "support"
+  ],
+  "css/CSS2/positioning/abspos-block-level-001.html": [
+   "c55fb3d3947b5b5742af07f39b0fd39d7bc1a80a",
+   "reftest"
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   "css/CSS2/positioning/abspos-containing-block-001-ref.xht": [
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@@ -519274,6 +519677,10 @@
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    "support"
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+  "css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html": [
+   "7ea2a25bf5d79aa4f2195b243831681efc2867c4",
+   "reftest"
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@@ -542714,6 +543121,14 @@
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   ],
+  "css/css-backgrounds/animations/background-position-x-interpolation.html": [
+   "a66c1ea078b98cb7eb03fb237ac88efc53bec41d",
+   "testharness"
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+  "css/css-backgrounds/animations/background-position-y-interpolation.html": [
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@@ -542746,6 +543161,10 @@
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+  "css/css-backgrounds/animations/box-shadow-interpolation.html": [
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+   "testharness"
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@@ -564667,7 +565086,7 @@
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@@ -571126,6 +571545,10 @@
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+  "css/css-overflow/overflow-padding.html": [
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@@ -572595,7 +573018,7 @@
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@@ -576206,6 +576629,10 @@
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+  "css/css-scroll-anchoring/scroll-padding-affects-anchoring.html": [
+   "e2c8741d88914d7346148bf11831889c5d3dcdd7",
+   "testharness"
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   "css/css-scroll-anchoring/start-edge-in-block-layout-direction.html": [
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@@ -578850,6 +579277,10 @@
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    "reftest"
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+  "css/css-tables/auto-layout-calc-width-001.html": [
+   "dbd35d8af1761428b2d8c8c5db9c1c9e4da0872e",
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   "css/css-tables/border-collapse-double-border-notref.html": [
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@@ -578890,14 +579321,22 @@
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+  "css/css-tables/calc-percent-plus-0px-auto.html": [
+   "ec6e9ccfdd702963a8c1b35c8c6c64576189de77",
+   "reftest"
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+  "css/css-tables/calc-percent-plus-0px-fixed-ref.html": [
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-  "css/css-tables/calc-percent-plus-0px.html": [
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+  "css/css-tables/calc-percent-plus-0px-fixed.html": [
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    "reftest"
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+  "css/css-tables/calc-percent-plus-0px-ref.html": [
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+   "support"
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@@ -578923,7 +579362,7 @@
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@@ -580610,6 +581049,10 @@
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@@ -580958,10 +581401,6 @@
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@@ -583503,11 +583942,11 @@
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   "css/css-text/overflow-wrap/overflow-wrap-cluster-001.html": [
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@@ -585083,7 +585522,7 @@
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   ],
   "tools/docker/start.sh": [
-   "2e5f69d40710f7fa6dfd17be0951b3de1ffdbf60",
+   "3427670cc9fa16a0ae23e2da1ecafcfe75789072",
    "support"
   ],
   "tools/gitignore/__init__.py": [
@@ -692431,7 +692946,7 @@
    "support"
   ],
   "tools/tox.ini": [
-   "52e749e4bdc4c7626df8ba67fb08a6209ea35ff2",
+   "63fb8ed9832ba9d11dae965e3c335e3d26289720",
    "support"
   ],
   "tools/webdriver/.gitignore": [
@@ -696311,7 +696826,7 @@
    "testharness"
   ],
   "web-animations/interfaces/Document/getAnimations.html": [
-   "f5df980cc053e55c05b07992a44a87f7d02826ff",
+   "f6a6c3edd447ccf42da4598db7e771a0ab99b04f",
    "testharness"
   ],
   "web-animations/interfaces/Document/timeline.html": [
@@ -699783,7 +700298,7 @@
    "testharness"
   ],
   "webrtc/RTCPeerConnection-createDataChannel.html": [
-   "8a13155358de3dab22a77f50172aae5bf0789b43",
+   "58e757bce076e9b5ad16c5943ff3065b91305fae",
    "testharness"
   ],
   "webrtc/RTCPeerConnection-createOffer.html": [
@@ -699815,7 +700330,7 @@
    "testharness"
   ],
   "webrtc/RTCPeerConnection-iceConnectionState.https.html": [
-   "8e853e4acbc1eee978ce6b482f514b2ac39a1994",
+   "9dd364ed3271283d71f784c3c37abddf09e68c68",
    "testharness"
   ],
   "webrtc/RTCPeerConnection-iceGatheringState.html": [
@@ -701138,6 +701653,10 @@
    "6c5158877417a3271ff0179449eace740cf157a1",
    "support"
   ],
+  "websockets/stream-tentative/abort.any.js": [
+   "2392188eaff6431366ae99907ee135d85b62458f",
+   "testharness"
+  ],
   "websockets/stream-tentative/backpressure-receive.any.js": [
    "11f4bd9d35016b6a36cb1532e4071f42e2f1b817",
    "testharness"
@@ -701579,7 +702098,7 @@
    "testharness"
   ],
   "webusb/usbDevice.https.any.js": [
-   "03dbe8f441369f824e17a850dffdfa3b616c63b0",
+   "b41687079e5746ded100f0ec47c9b3f153d9adaf",
    "testharness"
   ],
   "webusb/usbEndpoint.https.any.js": [
@@ -704718,6 +705237,10 @@
    "c8545999080892701858b425d8141ae0d3b3c469",
    "testharness"
   ],
+  "webxr/getViewerPose_emulatedPosition.https.html": [
+   "201a9b72208fae4f64ded8082b7ba11000517313",
+   "testharness"
+  ],
   "webxr/idlharness.https.window.js": [
    "3e54e367787cb95dada398790fe23b10174df29f",
    "testharness"
@@ -704751,7 +705274,7 @@
    "support"
   ],
   "webxr/resources/webxr_util.js": [
-   "935f49a1fc911ffbb735a424c37d71c9a1b95c8a",
+   "85821d4d3d5d7fd953cace5e7ea7bacc9d3b7dab",
    "support"
   ],
   "webxr/webGLCanvasContext_create_xrcompatible.https.html": [
@@ -704763,13 +705286,21 @@
    "testharness"
   ],
   "webxr/webxr-supported-by-feature-policy.html": [
-   "d1f8252977f7aa1b87e4139c640ae6788db607ae",
+   "2843849a34a818a1a7abd73ea873917a1739988d",
    "testharness"
   ],
   "webxr/webxr_availability.http.sub.html": [
    "515b2ad1a8d015120032ea56c473922a2af73e85",
    "testharness"
   ],
+  "webxr/webxr_feature_policy.https.html": [
+   "ea1bf82adb35d59618c79b8199aa22897015f28c",
+   "testharness"
+  ],
+  "webxr/webxr_feature_policy.https.html.headers": [
+   "2c758962332e723453f31a6cb8d3dfc3ac292d44",
+   "support"
+  ],
   "webxr/xrBoundedReferenceSpace_updates.https.html": [
    "812acf457c155c64bd47341ba3b710d696993a8c",
    "testharness"
@@ -704846,6 +705377,10 @@
    "4c50670c70ec87754a777cc0bcfe8272e794ca07",
    "testharness"
   ],
+  "webxr/xrInputSource_emulatedPosition.https.html": [
+   "7b0fda4508748c81a0865d137847fd7f13a3ff97",
+   "testharness"
+  ],
   "webxr/xrInputSource_gamepad_disconnect.https.html": [
    "66faf8699640fe3cef81a84d1f290988c35c3e14",
    "testharness"
diff --git a/tests/wpt/metadata/css/CSS2/positioning/abspos-block-level-001.html.ini b/tests/wpt/metadata/css/CSS2/positioning/abspos-block-level-001.html.ini
new file mode 100644
index 00000000000..288e23b6065
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/positioning/abspos-block-level-001.html.ini
@@ -0,0 +1,2 @@
+[abspos-block-level-001.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html.ini b/tests/wpt/metadata/css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html.ini
new file mode 100644
index 00000000000..928300474c1
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html.ini
@@ -0,0 +1,2 @@
+[toogle-abspos-on-relpos-inline-child.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-x-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-x-interpolation.html.ini
new file mode 100644
index 00000000000..3beb283012a
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-x-interpolation.html.ini
@@ -0,0 +1,4 @@
+[background-position-x-interpolation.html]
+  [background-position-x-interpolation]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-y-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-y-interpolation.html.ini
new file mode 100644
index 00000000000..0baa50c7671
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-y-interpolation.html.ini
@@ -0,0 +1,4 @@
+[background-position-y-interpolation.html]
+  [background-position-y-interpolation]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/box-shadow-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
new file mode 100644
index 00000000000..88df625ed31
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
@@ -0,0 +1,4 @@
+[box-shadow-interpolation.html]
+  [box-shadow-interpolation]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-baspglwj-094.html.ini b/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-baspglwj-094.html.ini
deleted file mode 100644
index 07ab7384011..00000000000
--- a/tests/wpt/metadata/css/css-text/i18n/css3-text-line-break-baspglwj-094.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[css3-text-line-break-baspglwj-094.html]
-  type: testharness
-  [ ]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/css/css-text/shaping/shaping-024.html.ini b/tests/wpt/metadata/css/css-text/shaping/shaping-024.html.ini
deleted file mode 100644
index 0d4e1eba867..00000000000
--- a/tests/wpt/metadata/css/css-text/shaping/shaping-024.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[shaping-024.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/shaping/shaping-025.html.ini b/tests/wpt/metadata/css/css-text/shaping/shaping-025.html.ini
deleted file mode 100644
index 23a42235a3b..00000000000
--- a/tests/wpt/metadata/css/css-text/shaping/shaping-025.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[shaping-025.html]
-  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/white-space/trailing-space-position-001.html.ini b/tests/wpt/metadata/css/css-text/white-space/trailing-space-position-001.html.ini
new file mode 100644
index 00000000000..50c6f89078e
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/trailing-space-position-001.html.ini
@@ -0,0 +1,7 @@
+[trailing-space-position-001.html]
+  [CSS Test: Positions of trailing collapsible spaces]
+    expected: FAIL
+
+  [CSS Test: Positions of trailing collapsible spaces 2]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
new file mode 100644
index 00000000000..e6e1f29e274
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
@@ -0,0 +1,2 @@
+[matchMedia-display-none-iframe.html]
+  expected: ERROR
diff --git a/tests/wpt/metadata/css/cssom-view/table-with-border-client-width-height.html.ini b/tests/wpt/metadata/css/cssom-view/table-with-border-client-width-height.html.ini
new file mode 100644
index 00000000000..3127bb7a068
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/table-with-border-client-width-height.html.ini
@@ -0,0 +1,4 @@
+[table-with-border-client-width-height.html]
+  [Table's clientWidth/Height and OffsetWidth/Height should be the same]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/encoding/streams/backpressure.any.js.ini b/tests/wpt/metadata/encoding/streams/backpressure.any.js.ini
index 57e9dd17391..e1b71d7aeb4 100644
--- a/tests/wpt/metadata/encoding/streams/backpressure.any.js.ini
+++ b/tests/wpt/metadata/encoding/streams/backpressure.any.js.ini
@@ -2,6 +2,7 @@
   [backpressure]
     expected: FAIL
 
+
 [backpressure.any.sharedworker.html]
   [backpressure]
     expected: FAIL
@@ -11,7 +12,32 @@
   [backpressure]
     expected: FAIL
 
+  [write() should not complete until read relieves backpressure for TextEncoderStream]
+    expected: FAIL
+
+  [additional writes should wait for backpressure to be relieved for class TextDecoderStream]
+    expected: FAIL
+
+  [write() should not complete until read relieves backpressure for TextDecoderStream]
+    expected: FAIL
+
+  [additional writes should wait for backpressure to be relieved for class TextEncoderStream]
+    expected: FAIL
+
+
 [backpressure.any.worker.html]
   [backpressure]
     expected: FAIL
 
+  [write() should not complete until read relieves backpressure for TextEncoderStream]
+    expected: FAIL
+
+  [additional writes should wait for backpressure to be relieved for class TextDecoderStream]
+    expected: FAIL
+
+  [write() should not complete until read relieves backpressure for TextDecoderStream]
+    expected: FAIL
+
+  [additional writes should wait for backpressure to be relieved for class TextEncoderStream]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index c335c5163e1..9aa8d1390da 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -315,18 +315,12 @@
   [<iframe>: combined response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
   [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html */*]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/plain */*]
+  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
+  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index b2ffc8abf78..c7413d589dc 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,6 +56,9 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript error]
+  [separate text/javascript;charset=windows-1252 error text/javascript]
+    expected: FAIL
+
+  [separate text/javascript;charset=windows-1252  text/javascript]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index 87c807a49ff..b2cd43ef76c 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,3 +11,9 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
+  [X-Content-Type-Options%3A%20'NosniFF']
+    expected: FAIL
+
+  [X-Content-Type-Options%3A%0D%0AX-Content-Type-Options%3A%20nosniff]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
deleted file mode 100644
index 385376c7321..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_4.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-top-left.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-top-left.html.ini
index 940516ddd33..ad8840fbb68 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-top-left.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-negative-top-left.html.ini
@@ -1,24 +1,5 @@
 [open-features-negative-top-left.html]
   type: testharness
-  expected: TIMEOUT
   [HTML: window.open `features`: negative values for `top`, `left`]
     expected: FAIL
 
-  [features "top=-204" should NOT set "top=204"]
-    expected: TIMEOUT
-
-  [features "top=-204.5" should NOT set "top=204"]
-    expected: TIMEOUT
-
-  [features "left=-204" should NOT set "left=204"]
-    expected: TIMEOUT
-
-  [features "top=-0" should NOT set "top=204"]
-    expected: TIMEOUT
-
-  [features "left=-204.5" should NOT set "left=204"]
-    expected: TIMEOUT
-
-  [features "left=-0" should NOT set "left=204"]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.tentative.html.ini b/tests/wpt/metadata/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html.ini
index ee272462a13..4003864dc8f 100644
--- a/tests/wpt/metadata/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.tentative.html.ini
+++ b/tests/wpt/metadata/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html.ini
@@ -1,4 +1,4 @@
-[img-aspect-ratio.tentative.html]
+[img-aspect-ratio.html]
   [Image width and height attributes are used to infer aspect-ratio]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
deleted file mode 100644
index 8cc42056d34..00000000000
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[non-active-document.html]
-  [DOMParser]
-    expected: FAIL
-
-  [createHTMLDocument]
-    expected: FAIL
-
-  [<template>]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html.ini
deleted file mode 100644
index 5957e152111..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[invalid-content-type.html]
-  expected: TIMEOUT
-  [text/json+blah]
-    expected: TIMEOUT
-
-  [application/json+blah]
-    expected: TIMEOUT
-
-  [application/json+protobuf]
-    expected: TIMEOUT
-
-  [application/blahjson]
-    expected: TIMEOUT
-
-  [image/json]
-    expected: TIMEOUT
-
-  [text/x-json]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/module.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/module.html.ini
deleted file mode 100644
index efdbfb19a7d..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/module.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[module.html]
-  expected: TIMEOUT
-  [JSON modules]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/non-object.any.js.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/non-object.any.js.ini
deleted file mode 100644
index 29dde1a522d..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/non-object.any.js.ini
+++ /dev/null
@@ -1,19 +0,0 @@
-[non-object.any.html]
-  [non-object]
-    expected: FAIL
-
-
-[non-object.any.worker.html]
-  [non-object]
-    expected: FAIL
-
-
-[non-object.any.serviceworker.html]
-  [non-object]
-    expected: FAIL
-
-
-[non-object.any.sharedworker.html]
-  [non-object]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/parse-error.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/parse-error.html.ini
deleted file mode 100644
index d740f8e963d..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/parse-error.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[parse-error.html]
-  expected: TIMEOUT
-  [JSON modules: parse error]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/utf8.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/utf8.html.ini
deleted file mode 100644
index 408b52af0fa..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/utf8.html.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-[utf8.html]
-  expected: TIMEOUT
-  [windows-1252]
-    expected: NOTRUN
-
-  [utf-7]
-    expected: NOTRUN
-
-  [shift-jis]
-    expected: NOTRUN
-
-  [utf-8]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html.ini
deleted file mode 100644
index b048aa51d14..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-[valid-content-type.html]
-  expected: TIMEOUT
-  [image/svg+json]
-    expected: NOTRUN
-
-  [text/html+json]
-    expected: NOTRUN
-
-  [application/json]
-    expected: NOTRUN
-
-  [text/json]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini b/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
deleted file mode 100644
index 178680e5d14..00000000000
--- a/tests/wpt/metadata/html/semantics/scripting-1/the-script-element/script-onerror-insertion-point-2.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[script-onerror-insertion-point-2.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/metadata/resource-timing/nested-context-navigations-iframe.html.ini b/tests/wpt/metadata/resource-timing/nested-context-navigations-iframe.html.ini
index 8594361ff44..ec371a1bf72 100644
--- a/tests/wpt/metadata/resource-timing/nested-context-navigations-iframe.html.ini
+++ b/tests/wpt/metadata/resource-timing/nested-context-navigations-iframe.html.ini
@@ -1,5 +1,5 @@
 [nested-context-navigations-iframe.html]
-  expected: CRASH
+  expected: TIMEOUT
   [Test that iframe navigations are not observable by the parent, even after history navigations by the parent]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/websockets/stream-tentative/abort.any.js.ini b/tests/wpt/metadata/websockets/stream-tentative/abort.any.js.ini
new file mode 100644
index 00000000000..216377372b0
--- /dev/null
+++ b/tests/wpt/metadata/websockets/stream-tentative/abort.any.js.ini
@@ -0,0 +1,31 @@
+[abort.any.worker.html]
+  [abort after connect should do nothing]
+    expected: FAIL
+
+  [abort during handshake should work]
+    expected: FAIL
+
+  [abort before constructing should prevent connection]
+    expected: FAIL
+
+
+[abort.any.sharedworker.html]
+  [abort]
+    expected: FAIL
+
+
+[abort.any.html]
+  [abort after connect should do nothing]
+    expected: FAIL
+
+  [abort during handshake should work]
+    expected: FAIL
+
+  [abort before constructing should prevent connection]
+    expected: FAIL
+
+
+[abort.any.serviceworker.html]
+  [abort]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webxr/getViewerPose_emulatedPosition.https.html.ini b/tests/wpt/metadata/webxr/getViewerPose_emulatedPosition.https.html.ini
new file mode 100644
index 00000000000..66dc95ea0de
--- /dev/null
+++ b/tests/wpt/metadata/webxr/getViewerPose_emulatedPosition.https.html.ini
@@ -0,0 +1,4 @@
+[getViewerPose_emulatedPosition.https.html]
+  [XRFrame getViewerPose has emulatedPosition set properly.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webxr/webxr-supported-by-feature-policy.html.ini b/tests/wpt/metadata/webxr/webxr-supported-by-feature-policy.html.ini
index 94a97237aa0..a4df8fb47d6 100644
--- a/tests/wpt/metadata/webxr/webxr-supported-by-feature-policy.html.ini
+++ b/tests/wpt/metadata/webxr/webxr-supported-by-feature-policy.html.ini
@@ -2,3 +2,6 @@
   [document.featurePolicy.features should advertise xr.]
     expected: FAIL
 
+  [document.featurePolicy.features should advertise xr-spatial-tracking.]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webxr/webxr_feature_policy.https.html.ini b/tests/wpt/metadata/webxr/webxr_feature_policy.https.html.ini
new file mode 100644
index 00000000000..a74f6535030
--- /dev/null
+++ b/tests/wpt/metadata/webxr/webxr_feature_policy.https.html.ini
@@ -0,0 +1,8 @@
+[webxr_feature_policy.https.html]
+  expected: ERROR
+  [Validate isSessionSupported behavior without xr-spatial-tracking policy]
+    expected: FAIL
+
+  [Validate requestSession behavior without xr-spatial-tracking policy]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini b/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini
index 6ff00c31bef..27f6c5ed7a2 100644
--- a/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini
+++ b/tests/wpt/metadata/webxr/xrBoundedReferenceSpace_updates.https.html.ini
@@ -1,5 +1,5 @@
 [xrBoundedReferenceSpace_updates.https.html]
-  expected: TIMEOUT
+  expected: ERROR
   ['XRBoundedReferenceSpace updates properly when the changes are applied]
     expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/webxr/xrInputSource_emulatedPosition.https.html.ini b/tests/wpt/metadata/webxr/xrInputSource_emulatedPosition.https.html.ini
new file mode 100644
index 00000000000..78cd06f3dfe
--- /dev/null
+++ b/tests/wpt/metadata/webxr/xrInputSource_emulatedPosition.https.html.ini
@@ -0,0 +1,4 @@
+[xrInputSource_emulatedPosition.https.html]
+  [Poses from XRInputSource.gripSpace have emulatedPosition set properly]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
new file mode 100644
index 00000000000..80f9a4f15b8
--- /dev/null
+++ b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
@@ -0,0 +1,2 @@
+[Worker-constructor.html]
+  expected: ERROR
diff --git a/tests/wpt/web-platform-tests/.github/META.yml b/tests/wpt/web-platform-tests/.github/META.yml
index 06083d1cd0e..19878fa5991 100644
--- a/tests/wpt/web-platform-tests/.github/META.yml
+++ b/tests/wpt/web-platform-tests/.github/META.yml
@@ -1,3 +1,4 @@
 suggested_reviewers:
+  - foolip
   - jgraham
   - jugglinmike
diff --git a/tests/wpt/web-platform-tests/.github/workflows/push-build-publish-documentation-website.yml b/tests/wpt/web-platform-tests/.github/workflows/build-publish-documentation-website.yml
index f6a1401a3dd..c368b8a117a 100644
--- a/tests/wpt/web-platform-tests/.github/workflows/push-build-publish-documentation-website.yml
+++ b/tests/wpt/web-platform-tests/.github/workflows/build-publish-documentation-website.yml
@@ -2,6 +2,11 @@ on:
   push:
     branches:
       - master
+  pull_request:
+    paths:
+      - 'docs/**'
+      - 'resources/**'
+      - 'tools/**'
 name: Build & Publish Documentation Website
 jobs:
   website-build-and-publish:
diff --git a/tests/wpt/web-platform-tests/.github/workflows/pull_request.yml b/tests/wpt/web-platform-tests/.github/workflows/pull_request.yml
deleted file mode 100644
index 81a53c67f4b..00000000000
--- a/tests/wpt/web-platform-tests/.github/workflows/pull_request.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-on: pull_request
-name: Synchronize the Pull Request Preview
-jobs:
-  update-pr-preview:
-    runs-on: ubuntu-18.04
-    steps:
-    - uses: actions/checkout@v1
-      with:
-        ref: refs/heads/master
-        fetch-depth: 50
-    - name: update-pr-preview
-      uses: ./tools/docker/github
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        entrypoint: python
-        args: tools/ci/update_pr_preview.py https://api.github.com
diff --git a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html
index 6f981854d38..7dea4609b94 100644
--- a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html
+++ b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html
@@ -25,6 +25,7 @@
     overflow: auto;
     height: 100px;
     width: 100px;
+    will-change: transform; /* force compositing */
   }
 
   .removed {
@@ -74,4 +75,4 @@
       });
     });
   });
-</script>
-\ No newline at end of file
+</script>
diff --git a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline.https.html b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline.https.html
index 000517162af..7006f8f84a6 100644
--- a/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline.https.html
+++ b/tests/wpt/web-platform-tests/animation-worklet/worklet-animation-with-scroll-timeline.https.html
@@ -25,6 +25,7 @@
     overflow: auto;
     height: 100px;
     width: 100px;
+    will-change: transform; /* force compositing */
   }
 
   #contents {
@@ -64,4 +65,4 @@
       takeScreenshot();
     });
   });
-</script>
-\ No newline at end of file
+</script>
diff --git a/tests/wpt/web-platform-tests/compat/webkit-gradient-comma.html b/tests/wpt/web-platform-tests/compat/webkit-gradient-comma.html
new file mode 100644
index 00000000000..b288a9a43fe
--- /dev/null
+++ b/tests/wpt/web-platform-tests/compat/webkit-gradient-comma.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<link rel="help" href="https://compat.spec.whatwg.org/#css-gradients-webkit-radial-gradient">
+<link rel="help" href="https://www.w3.org/TR/css3-images/#radial-gradients">
+<meta name="assert" content="Negative radii values are invalid.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+test(function() {
+    assert_true(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 3% 4%, red, blue)"));
+}, '-webkit-radial-gradient accepts comma before color stops.');
+
+test(function() {
+    assert_false(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 3% 4% red, blue)"));
+}, '-webkit-radial-gradient rejects missing comma before color stops.');
+</script>
diff --git a/tests/wpt/web-platform-tests/compat/webkit-radial-gradient-radii.html b/tests/wpt/web-platform-tests/compat/webkit-radial-gradient-radii.html
index bff414a44e2..f34e3523185 100644
--- a/tests/wpt/web-platform-tests/compat/webkit-radial-gradient-radii.html
+++ b/tests/wpt/web-platform-tests/compat/webkit-radial-gradient-radii.html
@@ -6,16 +6,16 @@
 <script src="/resources/testharnessreport.js"></script>
 <script>
 test(function() {
-    assert_true(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 3% 4% red, blue)"));
+    assert_true(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 3% 4%, red, blue)"));
 }, '-webkit-radial-gradient accepts positive radii.');
 
 test(function() {
-    assert_true(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 0% 4% red, blue)"));
+    assert_true(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 0% 4%, red, blue)"));
 }, '-webkit-radial-gradient accepts zero radii.');
 
 test(function() {
-    assert_false(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, -3% 4% red, blue)"));
-    assert_false(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 3% -4% red, blue)"));
-    assert_false(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, -3% -4% red, blue)"));
+    assert_false(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, -3% 4%, red, blue)"));
+    assert_false(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, 3% -4%, red, blue)"));
+    assert_false(CSS.supports("background-image", "-webkit-radial-gradient(1px 2px, -3% -4%, red, blue)"));
 }, '-webkit-radial-gradient rejects negative radii.');
 </script>
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.sub.js b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.sub.js
new file mode 100644
index 00000000000..7fc8eabc570
--- /dev/null
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.sub.js
@@ -0,0 +1,24 @@
+self.GLOBAL = {
+  isWindow: function() { return false; },
+  isWorker: function() { return true; },
+};
+importScripts("/resources/testharness.js");
+
+self.addEventListener('install', event => {
+  event.waitUntil((async () => {
+    try {
+      await cookieStore.subscribeToChanges([
+        { name: 'cookie-name', matchType: 'equals',
+        url: '/cookie-store/scope/path' }]);
+
+      // If the worker enters the "redundant" state, the UA may terminate it
+      // before all tests have been reported to the client. Stifle errors in
+      // order to avoid this and ensure all tests are consistently reported.
+    } catch (err) {}
+  })());
+});
+
+self.addEventListener('message', async event => {
+  const subscriptions = await cookieStore.getChangeSubscriptions();
+  event.ports[0].postMessage(subscriptions.length);
+});
+\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html
new file mode 100644
index 00000000000..a0923548c78
--- /dev/null
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html
@@ -0,0 +1,37 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>Async Cookies: reset cookie change subscription list</title>
+<link rel="help" href="https://github.com/WICG/cookie-store">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/service-workers/service-worker/resources/test-helpers.sub.js">
+</script>
+<script src='resources/helpers.js'></script>
+<script>
+const worker_url = 'serviceworker_cookieStore_subscriptions_reset.sub.js';
+const scope = '/cookie-store/';
+
+async function getSubscriptionCount(serviceWorker) {
+  return sendMessageOverChannel('', serviceWorker);
+}
+
+promise_test(async t => {
+  const registration = await service_worker_unregister_and_register(
+      t, worker_url, scope);
+  t.add_cleanup(() => registration.unregister());
+  await wait_for_state(t, registration.installing, 'activated');
+  assert_equals(await getSubscriptionCount(registration.active), 1,
+                'subscription count before unregistration');
+
+  await registration.unregister();
+
+  const new_registration = await navigator.serviceWorker.register(
+      worker_url, { scope });
+  t.add_cleanup(() => new_registration.unregister());
+  await wait_for_state(t, new_registration.installing, 'activated');
+
+  assert_equals(await getSubscriptionCount(new_registration.active), 1,
+                'subscription count after unregistration');
+}, `cookiechange subscription list resets across service worker
+    unregistrations`);
+</script>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/positioning/abspos-block-level-001-ref.html b/tests/wpt/web-platform-tests/css/CSS2/positioning/abspos-block-level-001-ref.html
new file mode 100644
index 00000000000..58f605dc747
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/CSS2/positioning/abspos-block-level-001-ref.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<style>
+.rtl {
+  direction: rtl
+}
+.absolute {
+  position: absolute;
+}
+.green {
+  background-color: lime;
+  padding: 0 1ch;
+}
+</style>
+<body>
+  <div>
+    <span class="absolute green">Block-level abspos before inline content</span>
+    <br>
+  </div>
+  <div>
+    <div>Inline content</div>
+    <div>Block-level abspos after inline content</div>
+  </div>
+  <div class=rtl>
+    <span class="absolute green">Block-level abspos before inline content</span>
+    <br>
+  </div>
+  <div class=rtl>
+    <div>Inline content</div>
+    <div>Block-level abspos after inline content</div>
+  </div>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/positioning/abspos-block-level-001.html b/tests/wpt/web-platform-tests/css/CSS2/positioning/abspos-block-level-001.html
new file mode 100644
index 00000000000..c55fb3d3947
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/CSS2/positioning/abspos-block-level-001.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<title>CSS Test: Static positions of block-level absolutely positioned objects</title>
+<link rel="help" href="https://drafts.csswg.org/css2/visudet.html#static-position">
+<link rel="match" href="abspos-block-level-001-ref.html">
+<link rel="author" title="Koji Ishii" href="mailto:kojii@chromium.org">
+<style>
+.rtl {
+  direction: rtl
+}
+.absolute {
+  position: absolute;
+}
+.red {
+  color: red;
+  padding: 0 1ch;
+}
+.green {
+  background-color: lime;
+  padding: 0 1ch;
+}
+</style>
+<body>
+  <div>
+    <div class="absolute green">Block-level abspos before inline content</div>
+    <span class="red">Inline content</span>
+  </div>
+  <div>
+    <span>Inline content</span>
+    <div class=absolute>Block-level abspos after inline content</div>
+  </div>
+  <br>
+  <div class=rtl>
+    <div class="absolute green">Block-level abspos before inline content</div>
+    <span class="red">Inline content</span>
+  </div>
+  <div class=rtl>
+    <span>Inline content</span>
+    <div class=absolute>Block-level abspos after inline content</div>
+  </div>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html b/tests/wpt/web-platform-tests/css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html
new file mode 100644
index 00000000000..7ea2a25bf5d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/CSS2/positioning/toogle-abspos-on-relpos-inline-child.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=732397">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visudet.html#containing-block-details">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="width:50px; height:50px; padding-left:50px; padding-top:50px; background:red;">
+  <span style="position:relative;">
+    <div id="victim" style="position:absolute; top:-50px; left:-50px; width:100px; height:100px; background:green;"></div>
+  </span>
+</div>
+<script>
+  document.body.offsetTop;
+  victim.style.position = "static";
+  document.body.offsetTop;
+  victim.style.position = "absolute";
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-position-x-interpolation.html b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-position-x-interpolation.html
new file mode 100644
index 00000000000..a66c1ea078b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-position-x-interpolation.html
@@ -0,0 +1,78 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#background-position">
+<meta name="test" content="background-position-x supports animation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<style>
+.parent {
+  background-position-x: 60px;
+}
+
+.target {
+  background-position-x: 40px;
+}
+</style>
+
+<body>
+<script>
+test_interpolation({
+  property: 'background-position-x',
+  from: neutralKeyframe,
+  to: '80px',
+}, [
+  {at: -0.25, expect: '30px'},
+  {at: 0, expect:     '40px'},
+  {at: 0.25, expect:  '50px'},
+  {at: 0.5, expect:   '60px'},
+  {at: 0.75, expect:  '70px'},
+  {at: 1, expect:     '80px'},
+  {at: 1.25, expect:  '90px'},
+]);
+
+test_interpolation({
+  property: 'background-position-x',
+  from: 'initial',
+  to: 'right',
+}, [
+  {at: -0.25, expect: '-25%'},
+  {at: 0, expect:     '0%'},
+  {at: 0.25, expect:  '25%'},
+  {at: 0.5, expect:   '50%'},
+  {at: 0.75, expect:  '75%'},
+  {at: 1, expect:     '100%'},
+  {at: 1.25, expect:  '125%'},
+]);
+
+test_interpolation({
+  property: 'background-position-x',
+  from: 'inherit',
+  to: '80px',
+}, [
+  {at: -0.25, expect: '55px'},
+  {at: 0, expect:     '60px'},
+  {at: 0.25, expect:  '65px'},
+  {at: 0.5, expect:   '70px'},
+  {at: 0.75, expect:  '75px'},
+  {at: 1, expect:     '80px'},
+  {at: 1.25, expect:  '85px'},
+]);
+
+test_interpolation({
+  property: 'background-position-x',
+  from: '300px, 400px',
+  to: '500px, 600px, 700px',
+}, [
+  {at: -0.25, expect: '250px, 350px, 200px, 375px, 225px, 325px'},
+  {at: 0, expect:     '300px, 400px, 300px, 400px, 300px, 400px'},
+  {at: 0.25, expect:  '350px, 450px, 400px, 425px, 375px, 475px'},
+  {at: 0.5, expect:   '400px, 500px, 500px, 450px, 450px, 550px'},
+  {at: 0.75, expect:  '450px, 550px, 600px, 475px, 525px, 625px'},
+  {at: 1, expect:     '500px, 600px, 700px, 500px, 600px, 700px'},
+  {at: 1.25, expect:  '550px, 650px, 800px, 525px, 675px, 775px'},
+]);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-position-y-interpolation.html b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-position-y-interpolation.html
new file mode 100644
index 00000000000..c272a71226f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-position-y-interpolation.html
@@ -0,0 +1,78 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#background-position">
+<meta name="test" content="background-position-y supports animation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<style>
+.parent {
+  background-position-y: 60px;
+}
+
+.target {
+  background-position-y: 40px;
+}
+</style>
+
+<body>
+<script>
+test_interpolation({
+  property: 'background-position-y',
+  from: neutralKeyframe,
+  to: '80px',
+}, [
+  {at: -0.25, expect: '30px'},
+  {at: 0, expect:     '40px'},
+  {at: 0.25, expect:  '50px'},
+  {at: 0.5, expect:   '60px'},
+  {at: 0.75, expect:  '70px'},
+  {at: 1, expect:     '80px'},
+  {at: 1.25, expect:  '90px'},
+]);
+
+test_interpolation({
+  property: 'background-position-y',
+  from: 'initial',
+  to: 'bottom',
+}, [
+  {at: -0.25, expect: '-25%'},
+  {at: 0, expect:     '0%'},
+  {at: 0.25, expect:  '25%'},
+  {at: 0.5, expect:   '50%'},
+  {at: 0.75, expect:  '75%'},
+  {at: 1, expect:     '100%'},
+  {at: 1.25, expect:  '125%'},
+]);
+
+test_interpolation({
+  property: 'background-position-y',
+  from: 'inherit',
+  to: '80px',
+}, [
+  {at: -0.25, expect: '55px'},
+  {at: 0, expect:     '60px'},
+  {at: 0.25, expect:  '65px'},
+  {at: 0.5, expect:   '70px'},
+  {at: 0.75, expect:  '75px'},
+  {at: 1, expect:     '80px'},
+  {at: 1.25, expect:  '85px'},
+]);
+
+test_interpolation({
+  property: 'background-position-y',
+  from: '300px, 400px',
+  to: '500px, 600px, 700px',
+}, [
+  {at: -0.25, expect: '250px, 350px, 200px, 375px, 225px, 325px'},
+  {at: 0, expect:     '300px, 400px, 300px, 400px, 300px, 400px'},
+  {at: 0.25, expect:  '350px, 450px, 400px, 425px, 375px, 475px'},
+  {at: 0.5, expect:   '400px, 500px, 500px, 450px, 450px, 550px'},
+  {at: 0.75, expect:  '450px, 550px, 600px, 475px, 525px, 625px'},
+  {at: 1, expect:     '500px, 600px, 700px, 500px, 600px, 700px'},
+  {at: 1.25, expect:  '550px, 650px, 800px, 525px, 675px, 775px'},
+]);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/animations/box-shadow-interpolation.html b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/box-shadow-interpolation.html
new file mode 100644
index 00000000000..d99e08faf13
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/box-shadow-interpolation.html
@@ -0,0 +1,171 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#box-shadow">
+<meta name="test" content="box-shadow supports animation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<style>
+.parent {
+  box-shadow: 30px 10px 30px 10px black;
+}
+.target {
+  display: inline-block;
+  width: 60px;
+  height: 60px;
+  font-size: 3px;
+  border: 2px solid;
+  margin-right: 20px;
+  margin-bottom: 30px;
+  color: green;
+  box-shadow: 10px 30px 10px 30px black;
+}
+.expected {
+  margin-right: 40px;
+}
+</style>
+<body>
+<script>
+test_interpolation({
+  property: 'box-shadow',
+  from: neutralKeyframe,
+  to: '20px 20px 20px 20px black',
+}, [
+  {at: -0.3, expect: 'rgb(0, 0, 0) 7px 33px 7px 33px'},
+  {at: 0, expect: 'rgb(0, 0, 0) 10px 30px 10px 30px'},
+  {at: 0.3, expect: 'rgb(0, 0, 0) 13px 27px 13px 27px'},
+  {at: 0.6, expect: 'rgb(0, 0, 0) 16px 24px 16px 24px'},
+  {at: 1, expect: 'rgb(0, 0, 0) 20px 20px 20px 20px'},
+  {at: 1.5, expect: 'rgb(0, 0, 0) 25px 15px 25px 15px'},
+]);
+
+test_interpolation({
+  property: 'box-shadow',
+  from: 'initial',
+  to: '20px 20px 20px 20px black',
+}, [
+  {at: -0.3, expect: 'rgba(0, 0, 0, 0) -6px -6px 0px -6px'},
+  {at: 0, expect: 'rgba(0, 0, 0, 0) 0px 0px 0px 0px'},
+  {at: 0.3, expect: 'rgba(0, 0, 0, 0.3) 6px 6px 6px 6px'},
+  {at: 0.6, expect: 'rgba(0, 0, 0, 0.6) 12px 12px 12px 12px'},
+  {at: 1, expect: 'rgb(0, 0, 0) 20px 20px 20px 20px'},
+  {at: 1.5, expect: 'rgb(0, 0, 0) 30px 30px 30px 30px'},
+]);
+
+test_interpolation({
+  property: 'box-shadow',
+  from: 'inherit',
+  to: '20px 20px 20px 20px black',
+}, [
+  {at: -0.3, expect: 'rgb(0, 0, 0) 33px 7px 33px 7px'},
+  {at: 0, expect: 'rgb(0, 0, 0) 30px 10px 30px 10px'},
+  {at: 0.3, expect: 'rgb(0, 0, 0) 27px 13px 27px 13px'},
+  {at: 0.6, expect: 'rgb(0, 0, 0) 24px 16px 24px 16px'},
+  {at: 1, expect: 'rgb(0, 0, 0) 20px 20px 20px 20px'},
+  {at: 1.5, expect: 'rgb(0, 0, 0) 15px 25px 15px 25px'},
+]);
+
+test_interpolation({
+  property: 'box-shadow',
+  from: 'unset',
+  to: '20px 20px 20px 20px black',
+}, [
+  {at: -0.3, expect: 'rgba(0, 0, 0, 0) -6px -6px 0px -6px'},
+  {at: 0, expect: 'rgba(0, 0, 0, 0) 0px 0px 0px 0px'},
+  {at: 0.3, expect: 'rgba(0, 0, 0, 0.3) 6px 6px 6px 6px'},
+  {at: 0.6, expect: 'rgba(0, 0, 0, 0.6) 12px 12px 12px 12px'},
+  {at: 1, expect: 'rgb(0, 0, 0) 20px 20px 20px 20px'},
+  {at: 1.5, expect: 'rgb(0, 0, 0) 30px 30px 30px 30px'},
+]);
+
+// Test basic functionality, and clipping blur at 0
+test_interpolation({
+  property: 'box-shadow',
+  from: '15px 10px 5px 6px black',
+  to: '-15px -10px 25px -4px orange',
+}, [
+  {at: -0.3, expect: 'rgb(0, 0, 0) 24px 16px 0px 9px'},
+  {at: 0, expect: 'rgb(0, 0, 0) 15px 10px 5px 6px'},
+  {at: 0.3, expect: 'rgb(77, 50, 0) 6px 4px 11px 3px'},
+  {at: 0.6, expect: 'rgb(153, 99, 0) -3px -2px 17px 0px'},
+  {at: 1, expect: 'rgb(255, 165, 0) -15px -10px 25px -4px'},
+  {at: 1.5, expect: 'rgb(255, 248, 0) -30px -20px 35px -9px'},
+]);
+
+// Test with color as first value.
+test_interpolation({
+  property: 'box-shadow',
+  from: 'black 15px 10px 5px 6px',
+  to: 'orange -15px -10px 25px -4px',
+}, [
+  {at: -0.3, expect: 'rgb(0, 0, 0) 24px 16px 0px 9px'},
+  {at: 0, expect: 'rgb(0, 0, 0) 15px 10px 5px 6px'},
+  {at: 0.3, expect: 'rgb(77, 50, 0) 6px 4px 11px 3px'},
+  {at: 0.6, expect: 'rgb(153, 99, 0) -3px -2px 17px 0px'},
+  {at: 1, expect: 'rgb(255, 165, 0) -15px -10px 25px -4px'},
+  {at: 1.5, expect: 'rgb(255, 248, 0) -30px -20px 35px -9px'},
+]);
+
+test_interpolation({
+  property: 'box-shadow',
+  from: '15px 10px 5px 6px black inset',
+  to: '-15px -10px 25px -4px orange inset',
+}, [
+  {at: -0.3, expect: 'rgb(0, 0, 0) 24px 16px 0px 9px inset'},
+  {at: 0, expect: 'rgb(0, 0, 0) 15px 10px 5px 6px inset'},
+  {at: 0.3, expect: 'rgb(77, 50, 0) 6px 4px 11px 3px inset'},
+  {at: 0.6, expect: 'rgb(153, 99, 0) -3px -2px 17px 0px inset'},
+  {at: 1, expect: 'rgb(255, 165, 0) -15px -10px 25px -4px inset'},
+  {at: 1.5, expect: 'rgb(255, 248, 0) -30px -20px 35px -9px inset'},
+]);
+
+test_interpolation({
+  property: 'box-shadow',
+  from: '15px 10px 5px 6px black',
+  to: '-15px -10px 25px -4px',
+}, [
+  {at: -0.3, expect: 'rgb(0, 0, 0) 24px 16px 0px 9px'},
+  {at: 0, expect: 'rgb(0, 0, 0) 15px 10px 5px 6px'},
+  {at: 0.3, expect: 'rgb(0, 38, 0) 6px 4px 11px 3px'},
+  {at: 0.6, expect: 'rgb(0, 77, 0) -3px -2px 17px 0px'},
+  {at: 1, expect: 'rgb(0, 128, 0) -15px -10px 25px -4px'},
+  {at: 1.5, expect: 'rgb(0, 192, 0) -30px -20px 35px -9px'},
+]);
+
+test_interpolation({
+  property: 'box-shadow',
+  from: '10px 10px 10px 10px black',
+  to: '10px 10px 10px 10px currentColor',
+}, [
+  {at: -0.3, expect: 'rgb(0, 0, 0) 10px 10px 10px 10px'},
+  {at: 0, expect: 'rgb(0, 0, 0) 10px 10px 10px 10px'},
+  {at: 0.3, expect: 'rgb(0, 38, 0) 10px 10px 10px 10px'},
+  {at: 0.6, expect: 'rgb(0, 77, 0) 10px 10px 10px 10px'},
+  {at: 1, expect: 'rgb(0, 128, 0) 10px 10px 10px 10px'},
+  {at: 1.5, expect: 'rgb(0, 192, 0) 10px 10px 10px 10px'},
+]);
+
+// Test padding shorter lists
+test_interpolation({
+  property: 'box-shadow',
+  from: '10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000',
+  to: 'none',
+}, [
+  {at: -0.3, expect: 'rgba(255, 255, 0, 0.65) 13px 26px 0px 0px, rgb(0, 166, 0) 6.5px 39px 0px 0px inset'},
+  {at: 0, expect: 'rgba(255, 255, 0, 0.5) 10px 20px 0px 0px, rgb(0, 128, 0) 5px 30px 0px 0px inset'},
+  {at: 0.3, expect: 'rgba(255, 255, 0, 0.353) 7px 14px 0px 0px, rgba(0, 128, 0, 0.7) 3.5px 21px 0px 0px inset'},
+  {at: 0.6, expect: 'rgba(255, 255, 0, 0.2) 4px 8px 0px 0px, rgba(0, 128, 0, 0.4) 2px 12px 0px 0px inset'},
+  {at: 1, expect: 'rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px inset'},
+  {at: 1.5, expect: 'rgba(0, 0, 0, 0) -5px -10px 0px 0px, rgba(0, 0, 0, 0) -2.5px -15px 0px 0px inset'},
+]);
+
+// Test unmatched inset
+test_no_interpolation({
+  property: 'box-shadow',
+  from: '10px 20px yellow, 5px 10px green',
+  to: 'inset 5px 10px green, 15px 20px blue'
+});
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-grid-template-areas-001.html b/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-grid-template-areas-001.html
index d647c2613af..1573fa496f6 100644
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-grid-template-areas-001.html
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-grid-template-areas-001.html
@@ -9,7 +9,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="support/testing-utils.js"></script>
 <style>
-  #grid {
+  #inline-grid {
     display: inline-grid;
   }
 </style>
diff --git a/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-repeat-001.html b/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-repeat-001.html
index 68ca0bd9b7c..465e5e8cd82 100644
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-repeat-001.html
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-inline-support-repeat-001.html
@@ -34,8 +34,8 @@ document.fonts.ready.then(()=> {
   TestingUtils.testGridTemplateColumnsRows("grid", "repeat(1, auto)", "repeat(1, auto)", "90px", "10px");
   TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(2, auto)", "repeat(2, auto)", ["0px 0px", "repeat(2, 0px)"], ["0px 0px", "repeat(2, 0px)"]);
   TestingUtils.testGridTemplateColumnsRows("grid", "repeat(2, auto)", "repeat(2, auto)", "90px 0px", "10px 0px");
-  TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(2, minmax(50px, calc(50px + 50%))", "repeat(2, minmax(50px, calc(50px + 50%))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
-  TestingUtils.testGridTemplateColumnsRows("grid", "repeat(2, minmax(50px, calc(50px + 50%))", "repeat(2, minmax(50px, calc(50px + 50%))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
+  TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(2, minmax(50px, calc(50px + 50%)))", "repeat(2, minmax(50px, calc(50px + 50%)))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
+  TestingUtils.testGridTemplateColumnsRows("grid", "repeat(2, minmax(50px, calc(50px + 50%)))", "repeat(2, minmax(50px, calc(50px + 50%)))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
   TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(5, 10%)", "repeat(5, 10%)", ["80px 80px 80px 80px 80px", "repeat(5, 80px)"], ["60px 60px 60px 60px 60px", "repeat(5, 60px)"]);
   TestingUtils.testGridTemplateColumnsRows("grid", "repeat(5, 10%)", "repeat(5, 10%)", ["80px 80px 80px 80px 80px", "repeat(5, 80px)"], ["60px 60px 60px 60px 60px", "repeat(5, 60px)"]);
   TestingUtils.testGridTemplateColumnsRows("emptyGrid", "max-content repeat(2, 25%) 1fr", "100px repeat(2, 25%) 1fr", ["0px 200px 200px 400px", "0px repeat(2, 200px) 400px"], ["100px 150px 150px 200px", "100px repeat(2, 150px) 200px"]);
diff --git a/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-support-repeat-001.html b/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-support-repeat-001.html
index 78a44e287a7..c2c8be0c591 100644
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-support-repeat-001.html
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-definition/grid-support-repeat-001.html
@@ -34,8 +34,8 @@ document.fonts.ready.then(()=> {
   TestingUtils.testGridTemplateColumnsRows("grid", "repeat(1, auto)", "repeat(1, auto)", "90px", "10px");
   TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(2, auto)", "repeat(2, auto)", ["0px 0px", "repeat(2, 0px)"], ["0px 0px", "repeat(2, 0px)"]);
   TestingUtils.testGridTemplateColumnsRows("grid", "repeat(2, auto)", "repeat(2, auto)", "90px 0px", "10px 0px");
-  TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(2, minmax(50px, calc(50px + 50%))", "repeat(2, minmax(50px, calc(50px + 50%))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
-  TestingUtils.testGridTemplateColumnsRows("grid", "repeat(2, minmax(50px, calc(50px + 50%))", "repeat(2, minmax(50px, calc(50px + 50%))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
+  TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(2, minmax(50px, calc(50px + 50%)))", "repeat(2, minmax(50px, calc(50px + 50%)))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
+  TestingUtils.testGridTemplateColumnsRows("grid", "repeat(2, minmax(50px, calc(50px + 50%)))", "repeat(2, minmax(50px, calc(50px + 50%)))", ["400px 400px", "repeat(2, 400px)"], ["300px 300px", "repeat(2, 300px)"]);
   TestingUtils.testGridTemplateColumnsRows("emptyGrid", "repeat(5, 10%)", "repeat(5, 10%)", ["80px 80px 80px 80px 80px", "repeat(5, 80px)"], ["60px 60px 60px 60px 60px", "repeat(5, 60px)"]);
   TestingUtils.testGridTemplateColumnsRows("grid", "repeat(5, 10%)", "repeat(5, 10%)", ["80px 80px 80px 80px 80px", "repeat(5, 80px)"], ["60px 60px 60px 60px 60px", "repeat(5, 60px)"]);
   TestingUtils.testGridTemplateColumnsRows("emptyGrid", "max-content repeat(2, 25%) 1fr", "100px repeat(2, 25%) 1fr", ["0px 200px 200px 400px", "0px repeat(2, 200px) 400px"], ["100px 150px 150px 200px", "100px repeat(2, 150px) 200px"]);
diff --git a/tests/wpt/web-platform-tests/css/css-overflow/overflow-padding.html b/tests/wpt/web-platform-tests/css/css-overflow/overflow-padding.html
new file mode 100644
index 00000000000..963192f6f43
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-overflow/overflow-padding.html
@@ -0,0 +1,113 @@
+<!doctype html>
+<link rel="author" title="Aleks Totic" href="mailto:atotic@chromium.org">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/129">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1003373">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.container {
+  --size: 100px;
+  --padding-size: 30px;
+  --too-big-size: calc(var(--size) - var(--padding-size) + 1px);
+  --just-right-size: calc(var(--size) - var(--padding-size));
+  overflow:auto;
+  width: var(--size);
+  height: var(--size);
+  padding-right: var(--padding-size);
+  padding-bottom: var(--padding-size);
+  background: #DDD;
+  box-sizing: border-box;
+  display: inline-block;
+}
+.big {
+  width: var(--too-big-size);
+  height: var(--too-big-size);
+  background: green;
+}
+.small {
+  width: var(--just-right-size);
+  height: var(--just-right-size);
+  background: yellow;
+}
+.bigfont {
+  font-size: var(--too-big-size);
+  font-family: Ahem;
+  line-height: 1;
+  color:green;
+}
+.smallfont {
+  font-size: var(--just-right-size);
+  font-family: Ahem;
+  line-height: 1;
+  color:yellow;
+}
+.red {
+  background:red;
+}
+
+</style>
+<body onload="runTest()">
+<p><span style="background:green">green</span> blocks get scrollbars, <span style="background:yellow">yellow</span> do not.</p>
+<p>Block child gets only block padding.</p>
+<div class="container" data-scrollbar="v">
+  <div class="big"></div>
+</div>
+<div class="container" data-scrollbar="">
+  <div class="small"></div>
+</div>
+
+<p>Inline child gets block and inline padding.</p>
+<div class="container bigfont" data-scrollbar="hv">
+  <span>X</span>
+</div>
+<div class="container" style="font:36px/1 Ahem;color:green" data-scrollbar="hv">
+  <span>XX</span><br>XX
+</div>
+<div class="container smallfont" data-scrollbar="">
+  <span>X</span>
+</div>
+
+<p>Inline block child gets block and inline padding.</p>
+<div class="container" data-scrollbar="hv">
+  <div class="big" style="display:inline-block;vertical-align:bottom;"></div>
+</div>
+<div class="container" data-scrollbar="">
+  <div class="small" style="display:inline-block;vertical-align:bottom;"></div>
+</div>
+
+<p>Padding applies to linebox, not linebox overflow.</p>
+<div class="container" data-scrollbar="">
+  <div class="small" style="display:inline-block;vertical-align:bottom">
+    <div style="height:90px;width:80px;background: rgba(0,0,255,0.3)"></div>
+  </div>
+</div>
+<script>
+  function hasHorizontalScrollbar(el) {
+    return (el.offsetHeight - el.clientHeight) > 0;
+  }
+  function hasVerticalScrollbar(el) {
+    return (el.offsetWidth - el.clientWidth) > 0;
+  }
+  // Tests needs to be run after load.
+  function runTest() {
+    test(()=> {
+      let i=0;
+      for (el of Array.from(document.querySelectorAll(".container"))) {
+        i++;
+        el.classList.toggle("red");
+        let expected = el.getAttribute("data-scrollbar");
+        if (expected.match(/h/))
+          assert_true(hasHorizontalScrollbar(el), `horizontal scrollbar ${i}`);
+        else
+          assert_false(hasHorizontalScrollbar(el), `horizontal scrollbar ${i}`);
+        if (expected.match(/v/))
+          assert_true(hasVerticalScrollbar(el), `vertical scrollbar ${i}`);
+        else
+          assert_false(hasVerticalScrollbar(el), `vertical scrollbar ${i}`);
+        el.classList.toggle("red");
+      }
+    }, "Container padding is applied approriately to block/inline children.");
+  }
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-position/position-absolute-replaced-minmax.html b/tests/wpt/web-platform-tests/css/css-position/position-absolute-replaced-minmax.html
index ff6757aeea3..a5c0d516472 100644
--- a/tests/wpt/web-platform-tests/css/css-position/position-absolute-replaced-minmax.html
+++ b/tests/wpt/web-platform-tests/css/css-position/position-absolute-replaced-minmax.html
@@ -251,13 +251,20 @@
   data-expected-width="338" data-expected-height="182" data-offset-y="11" data-offset-x="59"
   >
 </div>
-<!-- Just viewbox. Has aspect_ration, but no intrinsic size
+<!-- Just viewbox. Has aspect_ratio, but no intrinsic size
  inline_width defaults to container width -->
 <div class="container">
   <img class="target" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"
   data-expected-width="388" data-expected-height="67" data-offset-y="126" data-offset-x="9"
   >
 </div>
+<!-- Just viewbox. Has aspect_ratio, but no intrinsic size
+ inline_width is constrained by left/right, height computed proportionally -->
+<div class="container">
+  <img class="target" style="left:100px;right:100px" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"
+  data-expected-width="188" data-expected-height="47" data-offset-y="146" data-offset-x="109"
+  >
+</div>
 <!-- Viewbox + svg width. Has aspect_ratio and width. Height is scaled -->
 <div class="container">
   <img class="target" src="data:image/svg+xml,%3Csvg viewBox='0 0 100 10' width='100px' xmlns='http://www.w3.org/2000/svg' %3E%3Crect width='100%' height='100%' style='fill:rgb(0,255,0);'/%3E%3C/svg%3E"
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/scroll-padding-affects-anchoring.html b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/scroll-padding-affects-anchoring.html
new file mode 100644
index 00000000000..e2c8741d889
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/scroll-padding-affects-anchoring.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>scroll anchoring accounts for scroll-padding</title>
+<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
+<link rel="author" href="https://mozilla.org" title="Mozilla">
+<link rel="help" href="https://drafts.csswg.org/css-scroll-anchoring/#anchor-node-selection">
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap-1/#optimal-viewing-region">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  #scroller {
+    overflow: auto;
+    height: 500px;
+    scroll-padding-top: 200px;
+  }
+  #changer {
+    height: 100px;
+  }
+  #content {
+    height: 1000px;
+  }
+</style>
+<div id="scroller">
+  <div id="changer"></div>
+  <div id="content"></div>
+</div>
+<script>
+  test(() => {
+    scroller.scrollTop = 50;
+    changer.style.height = "200px";
+    assert_equals(scroller.scrollTop, 150, "Shouldn't anchor to #changer, since it's covered by scroll-padding");
+  });
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/auto-layout-calc-width-001.html b/tests/wpt/web-platform-tests/css/css-tables/auto-layout-calc-width-001.html
new file mode 100644
index 00000000000..dbd35d8af17
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-tables/auto-layout-calc-width-001.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+<link rel="author" title="David Grogan" href="dgrogan@chromium.org">
+<link rel="author" title="Xiaocheng Hu" href="xiaochengh@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-tables-3/#distributing-width-to-columns">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/94">
+
+<style>
+table {
+  width: 200px;
+  border-collapse: collapse;
+  table-layout: auto;
+  height: 20px;
+}
+
+td {
+  padding: 0px;
+  background: lime;
+  outline: 1px solid blue;
+}
+</style>
+
+<h2>Calc width on col is treated as auto in auto tables</h2>
+
+<table id=theTable>
+  <col style="width:calc(20% + 80px)">
+  <tr>
+    <td data-expected-width=100></td>
+    <td data-expected-width=100></td>
+  </tr>
+</table>
+
+<script>
+checkLayout('#theTable')
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px.html b/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-auto.html
index 6f04a2c0c62..ec6e9ccfdd7 100644
--- a/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px.html
+++ b/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-auto.html
@@ -1,10 +1,11 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
 <title>Simple calc expression in table layout</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/94">
 <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/3482">
 <link rel="match" href="calc-percent-plus-0px-ref.html">
-<meta name="assert" content="calc(% + 0px) should be handled as calc(%) in table layout.">
-<table border>
+<meta name="assert" content="calc(% + 0px) should be handled as calc(%) in auto table layout.">
+<table border style="table-layout: auto">
   <tr>
     <td style="width: calc(50% + 0px)">x</td>
     <td style="width: 100px">y</td>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-fixed-ref.html b/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-fixed-ref.html
new file mode 100644
index 00000000000..ec862ff1e08
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-fixed-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Simple calc expression in table layout</title>
+<table border style="table-layout: fixed; width: 200px">
+  <tr>
+    <td style="width: 50%">x</td>
+    <td>y</td>
+    <td>z</td>
+  </tr>
+</table>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-fixed.html b/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-fixed.html
new file mode 100644
index 00000000000..bcdb6721d4c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-tables/calc-percent-plus-0px-fixed.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Simple calc expression in table layout</title>
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/94">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/3482">
+<link rel="match" href="calc-percent-plus-0px-fixed-ref.html">
+<meta name="assert" content="calc(% + 0px) should be handled as calc(%) in fixed table layout.">
+<table border style="table-layout: fixed; width: 200px">
+  <tr>
+    <td style="width: calc(50% + 0px)">x</td>
+    <td>y</td>
+    <td>z</td>
+  </tr>
+</table>
diff --git a/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-calc-width-001.html b/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-calc-width-001.html
index dd70db0a756..ac6f9fc1a96 100644
--- a/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-calc-width-001.html
+++ b/tests/wpt/web-platform-tests/css/css-tables/fixed-layout-calc-width-001.html
@@ -4,6 +4,7 @@
 <script src="/resources/check-layout-th.js"></script>
 <link rel="author" title="David Grogan" href="dgrogan@chromium.org">
 <link rel="help" href="https://drafts.csswg.org/css-tables-3/#distributing-width-to-columns">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/94">
 
 <style>
 table {
diff --git a/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-out-of-flow-001.html b/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-out-of-flow-001.html
index 05d78b2c6cc..844071126b0 100644
--- a/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-out-of-flow-001.html
+++ b/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-out-of-flow-001.html
@@ -4,7 +4,7 @@
 <link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
 <link rel="help" href="https://drafts.csswg.org/css-text-3/#hyphens-property">
 <meta name="flags" content="">
-<link rel="match" href="reference/hyphens-span-001-ref.html">
+<link rel="match" href="reference/hyphens-out-of-flow-001-ref.html">
 <meta name="assert" content="the presence of an out of flow element has no effect on manual hyhenation">
 <style>
 span {
diff --git a/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-out-of-flow-001-ref.html b/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-out-of-flow-001-ref.html
new file mode 100644
index 00000000000..73394479247
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-out-of-flow-001-ref.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Text Test reference</title>
+<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
+<style>
+div {
+  border: solid orange;
+  margin: 5px;
+  width: 6ch;
+  hyphens: manual;
+}
+</style>
+
+<p>Test passes if the text in all orange boxes below is identical (including the presence and position of a hyphen).
+
+<div>high&shy;way</div>
+<div>high&shy;way</div>
+<div>high&shy;way</div>
+<div>high&shy;way</div>
+<div>high&shy;way</div>
+<div>high&shy;way</div>
+<div>high&shy;way</div>
diff --git a/tests/wpt/web-platform-tests/css/css-text/i18n/css3-text-line-break-baspglwj-083.html b/tests/wpt/web-platform-tests/css/css-text/i18n/css3-text-line-break-baspglwj-083.html
index 5d389995d2a..48f9151c459 100644
--- a/tests/wpt/web-platform-tests/css/css-text/i18n/css3-text-line-break-baspglwj-083.html
+++ b/tests/wpt/web-platform-tests/css/css-text/i18n/css3-text-line-break-baspglwj-083.html
@@ -2,7 +2,7 @@
 <html  lang="en" >
 <head>
 <meta charset="utf-8"/>
-<title>CSS3 Text, linebreaks: U+07BE TIBETAN KU RU KHA</title>
+<title>CSS3 Text, linebreaks: U+0FBE TIBETAN KU RU KHA</title>
 <link rel='author' title='Richard Ishida' href='mailto:ishida@w3.org'>
 <link rel='help' href='https://drafts.csswg.org/css-text-3/#line-breaking'>
 <script src="/resources/testharness.js"></script>
@@ -21,10 +21,10 @@
 
 
 <div class="test">
-  <div id="breakable">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x07BE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
-  <div id="breakable2">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x07BE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
-  <div id="breakable3">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x07BE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
-  <div id="breakable4">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x07BE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
+  <div id="breakable">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x0FBE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
+  <div id="breakable2">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x0FBE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
+  <div id="breakable3">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x0FBE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
+  <div id="breakable4">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x0FBE;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
 </div>
 
 
diff --git a/tests/wpt/web-platform-tests/css/css-text/i18n/css3-text-line-break-baspglwj-094.html b/tests/wpt/web-platform-tests/css/css-text/i18n/css3-text-line-break-baspglwj-094.html
deleted file mode 100644
index a38ad72667d..00000000000
--- a/tests/wpt/web-platform-tests/css/css-text/i18n/css3-text-line-break-baspglwj-094.html
+++ /dev/null
@@ -1,54 +0,0 @@
-<!DOCTYPE html>
-<html  lang="en" >
-<head>
-<meta charset="utf-8"/>
-<title>CSS3 Text, linebreaks: U+1B5C BALINESE WINDU</title>
-<link rel='author' title='Richard Ishida' href='mailto:ishida@w3.org'>
-<link rel='help' href='https://drafts.csswg.org/css-text-3/#line-breaking'>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<meta name='flags' content='should dom'>
-<meta name="assert" content="[Exploratory] The browser will break a line of text after any Unicode character with the BA Other Terminating Punctuation property.">
-<style type='text/css'>
-.test > div { font-family: monospace; font-size: 25px; width: 50ch; line-height: 30px; }
-#breakable2 { white-space: pre-line; }
-#breakable3 { white-space: pre-wrap; }
-#breakable4 { white-space: break-spaces; }
-</style>
-</head>
-<body>
-
-
-
-<div class="test">
-  <div id="breakable">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x1B5C;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
-  <div id="breakable2">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x1B5C;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
-  <div id="breakable3">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x1B5C;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
-  <div id="breakable4">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&#x1B5C;bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb</div>
-</div>
-
-
-<!--Notes:
-
-Box height: <span id='debugresult'></span><script>document.getElementById('debugresult').innerHTML = document.getElementById('breakable').offsetHeight;</script>
-
--->
-<script>
-test(function() {
-  assert_true(document.getElementById('breakable').offsetHeight > 35);
-}, "white-space:normal");
-test(function() {
-  assert_true(document.getElementById('breakable2').offsetHeight > 35);
-}, "white-space:pre-line");
-test(function() {
-  assert_true(document.getElementById('breakable3').offsetHeight > 35);
-}, "white-space:pre-wrap");
-test(function() {
-  assert_true(document.getElementById('breakable4').offsetHeight > 35);
-}, "white-space:break-spaces");
-</script>
-
-<div id='log'></div>
-
-</body>
-</html>
diff --git a/tests/wpt/web-platform-tests/css/css-text/line-break/line-break-anywhere-002.html b/tests/wpt/web-platform-tests/css/css-text/line-break/line-break-anywhere-002.html
index ddbf5547307..53df344ff8d 100644
--- a/tests/wpt/web-platform-tests/css/css-text/line-break/line-break-anywhere-002.html
+++ b/tests/wpt/web-platform-tests/css/css-text/line-break/line-break-anywhere-002.html
@@ -14,7 +14,7 @@
   background: green;
   font-family: monospace;
   width: 1ch;
-  height: 20em;
+  height: 19em;
 }
 #test {
   width: 1ch;
diff --git a/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-001.html b/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-001.html
index 7911a1b214c..797883b1478 100644
--- a/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-001.html
+++ b/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-001.html
@@ -8,7 +8,6 @@
 <style>
   div {
     font-size: 4em;
-    margin: 1rem;
     width: 4em;
   }
   #test {
diff --git a/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-002.html b/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-002.html
index bd5c9a60d87..70349b9c9af 100644
--- a/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-002.html
+++ b/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/overflow-wrap-cluster-002.html
@@ -4,11 +4,10 @@
 <link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net/">
 <link rel="help" href="https://www.w3.org/TR/css-text-3/#overflow-wrap-property">
 <link rel="match" href="reference/overflow-wrap-cluster-001-ref.html">
-<meta name="assert" content="grapheme clusters must stay together as one unit when a line is broken by overflow-wrap:break-word">
+<meta name="assert" content="grapheme clusters must stay together as one unit when a line is broken by overflow-wrap:anywhere">
 <style>
   div {
     font-size: 4em;
-    margin: 1rem;
     width: 4em;
   }
   #test {
diff --git a/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/reference/overflow-wrap-cluster-001-ref.html b/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/reference/overflow-wrap-cluster-001-ref.html
index 5a00d7284b2..97393cc1761 100644
--- a/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/reference/overflow-wrap-cluster-001-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/overflow-wrap/reference/overflow-wrap-cluster-001-ref.html
@@ -5,7 +5,6 @@
 <style>
   div {
     font-size: 4em;
-    margin: 1rem;
     width: 4em;
   }
 </style>
diff --git a/tests/wpt/web-platform-tests/css/css-text/parsing/letter-spacing-computed.html b/tests/wpt/web-platform-tests/css/css-text/parsing/letter-spacing-computed.html
index 9f54f9f56f4..45417d1b4a8 100644
--- a/tests/wpt/web-platform-tests/css/css-text/parsing/letter-spacing-computed.html
+++ b/tests/wpt/web-platform-tests/css/css-text/parsing/letter-spacing-computed.html
@@ -5,7 +5,7 @@
 <title>CSS Text: getComputedStyle().letterSpacing</title>
 <link rel="help" href="https://www.w3.org/TR/css-text-3/#propdef-letter-spacing">
 <meta name="assert" content="letter-spacing computed value is an absolute length.">
-<meta name="assert" content="'normal' computes to zero.">
+<meta name="assert" content="'normal' computes to zero, but the resolved value of 0px is 'normal', so that's the value that is observed.">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/css/support/computed-testcommon.js"></script>
@@ -18,7 +18,8 @@
 <body>
 <div id="target"></div>
 <script>
-test_computed_value("letter-spacing", "normal", "0px");
+test_computed_value("letter-spacing", "normal");
+test_computed_value("letter-spacing", "0px", "normal");
 
 test_computed_value("letter-spacing", "10px");
 test_computed_value("letter-spacing", "-20px");
diff --git a/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-024-ref.html b/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-024-ref.html
index 2a955ae1e16..7f6cbf97a0e 100644
--- a/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-024-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-024-ref.html
@@ -11,7 +11,7 @@
     font-family: 'csstest_noto';
     src: url('/fonts/noto/NotoSansMongolian-regular.woff2') format('woff2');
     }
-.test, .ref { border: 1px solid #02D7F6;  margin: 20px;  padding: 10px; width: 3em; font-size: 120px; font-family: "csstest_noto"; writing-mode: vertical-lr; float:left; }
+.test, .ref { border: 1px solid #02D7F6;  margin: 20px;  padding: 10px; width: 3em; font-size: 120px; font-family: "csstest_noto"; writing-mode: vertical-lr; }
 /* the CSS above is not part of the test */
 .styled { font-style:italic; }
 </style>
diff --git a/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-025-ref.html b/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-025-ref.html
index 19d45f49830..0418c263ebc 100644
--- a/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-025-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/shaping/reference/shaping-025-ref.html
@@ -11,7 +11,7 @@
     font-family: 'csstest_noto';
     src: url('/fonts/noto/NotoSansMongolian-regular.woff2') format('woff2');
     }
-.test, .ref { border: 1px solid #02D7F6;  margin: 20px;  padding: 10px; width: 3em; font-size: 120px; font-family: "csstest_noto"; writing-mode: vertical-lr; float:left; }
+.test, .ref { border: 1px solid #02D7F6;  margin: 20px;  padding: 10px; width: 3em; font-size: 120px; font-family: "csstest_noto"; writing-mode: vertical-lr; }
 /* the CSS above is not part of the test */
 .styled { text-decoration:underline; }
 </style>
diff --git a/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-004.html b/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-004.html
index 3323e2f4073..c0842687349 100644
--- a/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-004.html
+++ b/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-004.html
@@ -7,7 +7,6 @@
 <meta name="flags" content="">
 <link rel="match" href="reference/text-indent-percentage-002-ref.html">
 <meta name="assert" content="Percentages in text-indent refer to width of the element's content box, when used in a calc expression">
-<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
 <style>
 body { background: white; }
 section { position: absolute; }
@@ -15,7 +14,6 @@ section, div {
   border-right: 10px solid white;
   margin-right: 10px;
   padding-right: 10px;
-  font-family: Ahem;
 }
 div {
   box-sizing: border-box;
diff --git a/tests/wpt/web-platform-tests/css/css-text/text-transform/reference/text-transform-fullwidth-001-ref.xht b/tests/wpt/web-platform-tests/css/css-text/text-transform/reference/text-transform-fullwidth-001-ref.xht
index 9525b994a8f..e8a5f1acc3c 100644
--- a/tests/wpt/web-platform-tests/css/css-text/text-transform/reference/text-transform-fullwidth-001-ref.xht
+++ b/tests/wpt/web-platform-tests/css/css-text/text-transform/reference/text-transform-fullwidth-001-ref.xht
@@ -6,42 +6,26 @@
 		<link rel="author" title="Satoshi Umehara" href="mailto:umehara@est.co.jp" />
 		<style type="text/css">
 			<![CDATA[
+			        @font-face {
+					font-family: 'mplus-1p-regular';
+					src: url('/fonts/mplus-1p-regular.woff') format('woff');
+			        }
 				span {
+					font-family: 'mplus-1p-regular';
 					background-color: cyan;
 				}
 				.test {
 					color: Blue;
-					font-size: 200%;
-					line-height: 1.2em;
+					line-height: 1.1em;
 				}
 				.test div {
 					display: inline-block;
-					margin-bottom: 1em;
-					margin-top: 1em;
+					margin-bottom: .5em;
 					text-align: center;
 					white-space: nowrap;
-					width: 5em;
 				}
 			]]>
 		</style>
-		<script type="text/javascript">
-			//	<![CDATA[
-					// Set Font Family to 'IPAMincho'
-					function setFontFamily () {
-						var fontName = 'IPAMincho';
-						var divs = document.getElementsByTagName('div');
-						var i = 0;
-						var div;
-						while (i < divs.length) {
-							div = divs.item(i);
-							if (div.className == 'test') {
-								div.style.fontFamily = fontName;
-							}
-							i++;
-						}
-					}
-			//	]]>
-		</script>
 	</head>
 	<body>
 		<p>
@@ -52,12 +36,12 @@
 		<!-- FULLWIDTH LATIN -->
 			<div>[<span>　</span>]<br />[<span>　</span>]</div>
 			<div><span>！</span><br /><span>！</span></div>
-			<div><span>”</span><br /><span>”</span></div>
+			<div><span>＂</span><br /><span>＂</span></div>
 			<div><span>＃</span><br /><span>＃</span></div>
 			<div><span>＄</span><br /><span>＄</span></div>
 			<div><span>％</span><br /><span>％</span></div>
 			<div><span>＆</span><br /><span>＆</span></div>
-			<div><span>’</span><br /><span>’</span></div>
+			<div><span>＇</span><br /><span>＇</span></div>
 			<div><span>（</span><br /><span>（</span></div>
 			<div><span>）</span><br /><span>）</span></div>
 			<div><span>＊</span><br /><span>＊</span></div>
@@ -66,7 +50,7 @@
 			<div><span>－</span><br /><span>－</span></div>
 			<div><span>．</span><br /><span>．</span></div>
 			<div><span>／</span><br /><span>／</span></div>
-			<br />
+
 			<div><span>０</span><br /><span>０</span></div>
 			<div><span>１</span><br /><span>１</span></div>
 			<div><span>２</span><br /><span>２</span></div>
@@ -77,7 +61,7 @@
 			<div><span>７</span><br /><span>７</span></div>
 			<div><span>８</span><br /><span>８</span></div>
 			<div><span>９</span><br /><span>９</span></div>
-			<br />
+
 			<div><span>：</span><br /><span>：</span></div>
 			<div><span>；</span><br /><span>；</span></div>
 			<div><span>＜</span><br /><span>＜</span></div>
@@ -85,7 +69,7 @@
 			<div><span>＞</span><br /><span>＞</span></div>
 			<div><span>？</span><br /><span>？</span></div>
 			<div><span>＠</span><br /><span>＠</span></div>
-			<br />
+
 			<div><span>Ａ</span><br /><span>Ａ</span></div>
 			<div><span>Ｂ</span><br /><span>Ｂ</span></div>
 			<div><span>Ｃ</span><br /><span>Ｃ</span></div>
@@ -112,14 +96,14 @@
 			<div><span>Ｘ</span><br /><span>Ｘ</span></div>
 			<div><span>Ｙ</span><br /><span>Ｙ</span></div>
 			<div><span>Ｚ</span><br /><span>Ｚ</span></div>
-			<br />
+
 			<div><span>［</span><br /><span>［</span></div>
 			<div><span>＼</span><br /><span>＼</span></div>
 			<div><span>］</span><br /><span>］</span></div>
 			<div><span>＾</span><br /><span>＾</span></div>
 			<div><span>＿</span><br /><span>＿</span></div>
 			<div><span>｀</span><br /><span>｀</span></div>
-			<br />
+
 			<div><span>ａ</span><br /><span>ａ</span></div>
 			<div><span>ｂ</span><br /><span>ｂ</span></div>
 			<div><span>ｃ</span><br /><span>ｃ</span></div>
@@ -146,7 +130,7 @@
 			<div><span>ｘ</span><br /><span>ｘ</span></div>
 			<div><span>ｙ</span><br /><span>ｙ</span></div>
 			<div><span>ｚ</span><br /><span>ｚ</span></div>
-			<br />
+
 			<div><span>｛</span><br /><span>｛</span></div>
 			<div><span>｜</span><br /><span>｜</span></div>
 			<div><span>｝</span><br /><span>｝</span></div>
@@ -156,13 +140,12 @@
 			<div><span>｠</span><br /><span>｠</span></div>				<!-- RIGHT WHITE PARENTHESIS -->
 
 		<!-- HALFWIDTH KATAKANA -->
-			<br />
 			<div><span>。</span><br /><span>。</span></div>
 			<div><span>「</span><br /><span>「</span></div>
 			<div><span>」</span><br /><span>」</span></div>
 			<div><span>、</span><br /><span>、</span></div>
 			<div><span>・</span><br /><span>・</span></div>
-			<br />
+
 			<div><span>ヲ</span><br /><span>ヲ</span></div>
 			<div><span>ァ</span><br /><span>ァ</span></div>
 			<div><span>ィ</span><br /><span>ィ</span></div>
@@ -174,7 +157,7 @@
 			<div><span>ョ</span><br /><span>ョ</span></div>
 			<div><span>ッ</span><br /><span>ッ</span></div>
 			<div><span>ー</span><br /><span>ー</span></div>
-			<br />
+
 			<div><span>ア</span><br /><span>ア</span></div>
 			<div><span>イ</span><br /><span>イ</span></div>
 			<div><span>ウ</span><br /><span>ウ</span></div>
@@ -220,15 +203,14 @@
 			<div><span>ロ</span><br /><span>ロ</span></div>
 			<div><span>ワ</span><br /><span>ワ</span></div>
 			<div><span>ン</span><br /><span>ン</span></div>
-			<br />
-			<div><span>゛</span><br /><span>゛</span></div>
-			<div><span>゜</span><br /><span>゜</span></div>
+
+			<div><span>&nbsp;&#x3099;</span><br /><span>&nbsp;&#x3099;</span></div>
+			<div><span>&nbsp;&#x309A;</span><br /><span>&nbsp;&#x309A;</span></div>
 
 		<!-- HALFWIDTH HANGUL -->
-			<br />
 			<div>[<span>&#x115F;</span>]<br />[<span>&#x115F;</span>]</div>	<!-- HANGUL FILLER -->
 			<div><span>ᆨ</span><br /><span>ᆨ</span></div>				<!-- HANGUL LETTER KIYEOK -->
-			<div><span>ᆩ</span><br /><span>ᆩ</span></div>				<!-- HANGUL LETTER SSANGKIYEOK -->
+			<div><span>ㄲ</span><br /><span>ㄲ</span></div>				<!-- HANGUL LETTER SSANGKIYEOK -->
 			<div><span>ᆪ</span><br /><span>ᆪ</span></div>				<!-- HANGUL LETTER KIYEOK-SIOS -->
 			<div><span>ᆫ</span><br /><span>ᆫ</span></div>				<!-- HANGUL LETTER NIEUN -->
 			<div><span>ᆬ</span><br /><span>ᆬ</span></div>				<!-- HANGUL LETTER NIEUN-CIEUC -->
@@ -242,7 +224,7 @@
 			<div><span>ᆳ</span><br /><span>ᆳ</span></div>				<!-- HANGUL LETTER RIEUL-SIOS -->
 			<div><span>ᆴ</span><br /><span>ᆴ</span></div>				<!-- HANGUL LETTER RIEUL-THIEUTH -->
 			<div><span>ᆵ</span><br /><span>ᆵ</span></div>				<!-- HANGUL LETTER RIEUL-PHIEUPH -->
-			<div><span>&#x111A;</span><br /><span>&#x111A;</span></div>	<!-- HANGUL LETTER RIEUL-HIEUH -->
+			<div><span>ㅀ</span><br /><span>ㅀ</span></div>				<!-- HANGUL LETTER RIEUL-HIEUH -->
 			<div><span>ᄆ</span><br /><span>ᄆ</span></div>				<!-- HANGUL LETTER MIEUM -->
 			<div><span>ᄇ</span><br /><span>ᄇ</span></div>				<!-- HANGUL LETTER PIEUP -->
 			<div><span>ᄈ</span><br /><span>ᄈ</span></div>				<!-- HANGUL LETTER SSANGPIEUP -->
@@ -257,7 +239,6 @@
 			<div><span>ᇀ</span><br /><span>ᇀ</span></div>				<!-- HANGUL LETTER THIEUTH -->
 			<div><span>ᄑ</span><br /><span>ᄑ</span></div>				<!-- HANGUL LETTER PHIEUPH -->
 			<div><span>ᇂ</span><br /><span>ᇂ</span></div>				<!-- HANGUL LETTER HIEUH -->
-			<br />
 			<div><span>ᅡ</span><br /><span>ᅡ</span></div>				<!-- HANGUL LETTER A -->
 			<div><span>ᅢ</span><br /><span>ᅢ</span></div>				<!-- HANGUL LETTER AE -->
 			<div><span>ᅣ</span><br /><span>ᅣ</span></div>				<!-- HANGUL LETTER YA -->
@@ -284,7 +265,6 @@
 			<div><span>ᅵ</span><br /><span>ᅵ</span></div>				<!-- HANGUL LETTER I -->
 
 		<!-- FULLWIDTH SIGN -->
-			<br />
 			<div><span>￠</span><br /><span>￠</span></div>				<!-- CENT SIGN -->
 			<div><span>￡</span><br /><span>￡</span></div>				<!-- POUND SIGN -->
 			<div><span>￢</span><br /><span>￢</span></div>				<!-- NOT SIGN -->
@@ -294,8 +274,7 @@
 			<div><span>￦</span><br /><span>￦</span></div>				<!-- WON SIGN -->
 
 		<!-- HALFWIDTH SIGN -->
-			<br />
-			<div><span>｜</span><br /><span>｜</span></div>				<!-- FORMS LIGHT VERTICAL -->
+			<div><span>│</span><br /><span>│</span></div>				<!-- FORMS LIGHT VERTICAL -->
 			<div><span>←</span><br /><span>←</span></div>				<!-- LEFTWARDS ARROW -->
 			<div><span>↑</span><br /><span>↑</span></div>				<!-- UPWARDS ARROW -->
 			<div><span>→</span><br /><span>→</span></div>				<!-- RIGHTWARDS ARROW -->
@@ -304,39 +283,26 @@
 			<div><span>○</span><br /><span>○</span></div>				<!-- WHITE CIRCLE -->
 
 		<!-- HALFWIDTH LATIN -->
-			<br />
 			<div><span>Ａ</span><br /><span>Ａ</span></div>
 			<div><span>Ｂ</span><br /><span>Ｂ</span></div>
 			<div><span>Ｃ</span><br /><span>Ｃ</span></div>
-			<br />
+
 			<div><span>ａ</span><br /><span>ａ</span></div>
 			<div><span>ｂ</span><br /><span>ｂ</span></div>
 			<div><span>ｃ</span><br /><span>ｃ</span></div>
 
 		<!-- FULLWIDTH KANA -->
-			<br />
 			<div><span>あ</span><br /><span>あ</span></div>
 			<div><span>い</span><br /><span>い</span></div>
 			<div><span>う</span><br /><span>う</span></div>
 			<div><span>え</span><br /><span>え</span></div>
 			<div><span>お</span><br /><span>お</span></div>
-			<br />
+
 			<div><span>ア</span><br /><span>ア</span></div>
 			<div><span>イ</span><br /><span>イ</span></div>
 			<div><span>ウ</span><br /><span>ウ</span></div>
 			<div><span>エ</span><br /><span>エ</span></div>
 			<div><span>オ</span><br /><span>オ</span></div>
 		</div>
-		<p id="fontChange" style="display: none;">
-			If you are unable to see font glyphs for certain characters using the browsers default font, install the <a href="http://ossipedia.ipa.go.jp/ipafont/">IPA Font(http://ossipedia.ipa.go.jp/ipafont/)</a> and apply it.
-			<button type="button" onclick="setFontFamily()">
-				Apply
-			</button>
-		</p>
-		<script type="text/javascript">
-			if (document.getElementById) {
-				document.getElementById('fontChange').style.display = 'block'
-			}
-		</script>
 	</body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-text/text-transform/text-transform-fullwidth-001.xht b/tests/wpt/web-platform-tests/css/css-text/text-transform/text-transform-fullwidth-001.xht
index 9ee7b6c42d2..a7fe63c8350 100644
--- a/tests/wpt/web-platform-tests/css/css-text/text-transform/text-transform-fullwidth-001.xht
+++ b/tests/wpt/web-platform-tests/css/css-text/text-transform/text-transform-fullwidth-001.xht
@@ -11,46 +11,30 @@
 		<meta name="assert" content="The UA should transform halfwidth character to fullwidth character when text-transform is set to fullwidth." />
 		<style type="text/css">
 			<![CDATA[
+			        @font-face {
+					font-family: 'mplus-1p-regular';
+					src: url('/fonts/mplus-1p-regular.woff') format('woff');
+			        }
 				.test span {
 					text-transform: full-width;
 				}
 				/* the CSS below is not part of the test */
 				span {
+				       font-family: 'mplus-1p-regular';
 					background-color: cyan;
 				}
 				.test {
 					color: Blue;
-					font-size: 200%;
-					line-height: 1.2em;
+					line-height: 1.1;
 				}
 				.test div {
 					display: inline-block;
-					margin-bottom: 1em;
-					margin-top: 1em;
+					margin-bottom: .5em;
 					text-align: center;
 					white-space: nowrap;
-					width: 5em;
 				}
 			]]>
 		</style>
-		<script type="text/javascript">
-			//	<![CDATA[
-					// Set Font Family to 'IPAMincho'
-					function setFontFamily () {
-						var fontName = 'IPAMincho';
-						var divs = document.getElementsByTagName('div');
-						var i = 0;
-						var div;
-						while (i < divs.length) {
-							div = divs.item(i);
-							if (div.className == 'test') {
-								div.style.fontFamily = fontName;
-							}
-							i++;
-						}
-					}
-			//	]]>
-		</script>
 	</head>
 	<body>
 		<p>
@@ -61,12 +45,12 @@
 		<!-- FULLWIDTH LATIN -->
 			<div>[<span>　</span>]<br />[<span> </span>]</div>
 			<div><span>！</span><br /><span>!</span></div>
-			<div><span>”</span><br /><span>&quot;</span></div>
+			<div><span>＂</span><br /><span>&quot;</span></div>
 			<div><span>＃</span><br /><span>#</span></div>
 			<div><span>＄</span><br /><span>$</span></div>
 			<div><span>％</span><br /><span>%</span></div>
 			<div><span>＆</span><br /><span>&amp;</span></div>
-			<div><span>’</span><br /><span>'</span></div>
+			<div><span>＇</span><br /><span>'</span></div>
 			<div><span>（</span><br /><span>(</span></div>
 			<div><span>）</span><br /><span>)</span></div>
 			<div><span>＊</span><br /><span>*</span></div>
@@ -75,7 +59,7 @@
 			<div><span>－</span><br /><span>-</span></div>
 			<div><span>．</span><br /><span>.</span></div>
 			<div><span>／</span><br /><span>/</span></div>
-			<br />
+
 			<div><span>０</span><br /><span>0</span></div>
 			<div><span>１</span><br /><span>1</span></div>
 			<div><span>２</span><br /><span>2</span></div>
@@ -86,7 +70,7 @@
 			<div><span>７</span><br /><span>7</span></div>
 			<div><span>８</span><br /><span>8</span></div>
 			<div><span>９</span><br /><span>9</span></div>
-			<br />
+
 			<div><span>：</span><br /><span>:</span></div>
 			<div><span>；</span><br /><span>;</span></div>
 			<div><span>＜</span><br /><span>&lt;</span></div>
@@ -94,7 +78,7 @@
 			<div><span>＞</span><br /><span>&gt;</span></div>
 			<div><span>？</span><br /><span>?</span></div>
 			<div><span>＠</span><br /><span>@</span></div>
-			<br />
+
 			<div><span>Ａ</span><br /><span>A</span></div>
 			<div><span>Ｂ</span><br /><span>B</span></div>
 			<div><span>Ｃ</span><br /><span>C</span></div>
@@ -121,14 +105,14 @@
 			<div><span>Ｘ</span><br /><span>X</span></div>
 			<div><span>Ｙ</span><br /><span>Y</span></div>
 			<div><span>Ｚ</span><br /><span>Z</span></div>
-			<br />
+
 			<div><span>［</span><br /><span>[</span></div>
 			<div><span>＼</span><br /><span>\</span></div>
 			<div><span>］</span><br /><span>]</span></div>
 			<div><span>＾</span><br /><span>^</span></div>
 			<div><span>＿</span><br /><span>_</span></div>
 			<div><span>｀</span><br /><span>`</span></div>
-			<br />
+
 			<div><span>ａ</span><br /><span>a</span></div>
 			<div><span>ｂ</span><br /><span>b</span></div>
 			<div><span>ｃ</span><br /><span>c</span></div>
@@ -155,7 +139,7 @@
 			<div><span>ｘ</span><br /><span>x</span></div>
 			<div><span>ｙ</span><br /><span>y</span></div>
 			<div><span>ｚ</span><br /><span>z</span></div>
-			<br />
+
 			<div><span>｛</span><br /><span>{</span></div>
 			<div><span>｜</span><br /><span>|</span></div>
 			<div><span>｝</span><br /><span>}</span></div>
@@ -165,13 +149,12 @@
 			<div><span>｠</span><br /><span>⦆</span></div>				<!-- RIGHT WHITE PARENTHESIS -->
 
 		<!-- HALFWIDTH KATAKANA -->
-			<br />
 			<div><span>。</span><br /><span>｡</span></div>
 			<div><span>「</span><br /><span>｢</span></div>
 			<div><span>」</span><br /><span>｣</span></div>
 			<div><span>、</span><br /><span>､</span></div>
 			<div><span>・</span><br /><span>･</span></div>
-			<br />
+
 			<div><span>ヲ</span><br /><span>ｦ</span></div>
 			<div><span>ァ</span><br /><span>ｧ</span></div>
 			<div><span>ィ</span><br /><span>ｨ</span></div>
@@ -183,7 +166,7 @@
 			<div><span>ョ</span><br /><span>ｮ</span></div>
 			<div><span>ッ</span><br /><span>ｯ</span></div>
 			<div><span>ー</span><br /><span>ｰ</span></div>
-			<br />
+
 			<div><span>ア</span><br /><span>ｱ</span></div>
 			<div><span>イ</span><br /><span>ｲ</span></div>
 			<div><span>ウ</span><br /><span>ｳ</span></div>
@@ -229,15 +212,14 @@
 			<div><span>ロ</span><br /><span>ﾛ</span></div>
 			<div><span>ワ</span><br /><span>ﾜ</span></div>
 			<div><span>ン</span><br /><span>ﾝ</span></div>
-			<br />
-			<div><span>゛</span><br /><span>ﾞ</span></div>
-			<div><span>゜</span><br /><span>ﾟ</span></div>
+
+			<div><span>&nbsp;&#x3099;</span><br /><span>&nbsp;ﾞ</span></div>
+			<div><span>&nbsp;&#x309A;</span><br /><span>&nbsp;ﾟ</span></div>
 
 		<!-- HALFWIDTH HANGUL -->
-			<br />
 			<div>[<span>&#x115F;</span>]<br />[<span>&#xFFA0;</span>]</div>	<!-- HANGUL FILLER -->
 			<div><span>ᆨ</span><br /><span>ﾡ</span></div>				<!-- HANGUL LETTER KIYEOK -->
-			<div><span>ᆩ</span><br /><span>ﾢ</span></div>				<!-- HANGUL LETTER SSANGKIYEOK -->
+			<div><span>ㄲ</span><br /><span>ﾢ</span></div>				<!-- HANGUL LETTER SSANGKIYEOK -->
 			<div><span>ᆪ</span><br /><span>ﾣ</span></div>				<!-- HANGUL LETTER KIYEOK-SIOS -->
 			<div><span>ᆫ</span><br /><span>ﾤ</span></div>				<!-- HANGUL LETTER NIEUN -->
 			<div><span>ᆬ</span><br /><span>ﾥ</span></div>				<!-- HANGUL LETTER NIEUN-CIEUC -->
@@ -251,7 +233,7 @@
 			<div><span>ᆳ</span><br /><span>ﾭ</span></div>				<!-- HANGUL LETTER RIEUL-SIOS -->
 			<div><span>ᆴ</span><br /><span>ﾮ</span></div>				<!-- HANGUL LETTER RIEUL-THIEUTH -->
 			<div><span>ᆵ</span><br /><span>ﾯ</span></div>				<!-- HANGUL LETTER RIEUL-PHIEUPH -->
-			<div><span>&#x111A;</span><br /><span>ﾰ</span></div>	<!-- HANGUL LETTER RIEUL-HIEUH -->
+			<div><span>ㅀ</span><br /><span>ﾰ</span></div>			<!-- HANGUL LETTER RIEUL-HIEUH -->
 			<div><span>ᄆ</span><br /><span>ﾱ</span></div>				<!-- HANGUL LETTER MIEUM -->
 			<div><span>ᄇ</span><br /><span>ﾲ</span></div>				<!-- HANGUL LETTER PIEUP -->
 			<div><span>ᄈ</span><br /><span>ﾳ</span></div>				<!-- HANGUL LETTER SSANGPIEUP -->
@@ -266,7 +248,6 @@
 			<div><span>ᇀ</span><br /><span>ﾼ</span></div>				<!-- HANGUL LETTER THIEUTH -->
 			<div><span>ᄑ</span><br /><span>ﾽ</span></div>				<!-- HANGUL LETTER PHIEUPH -->
 			<div><span>ᇂ</span><br /><span>ﾾ</span></div>				<!-- HANGUL LETTER HIEUH -->
-			<br />
 			<div><span>ᅡ</span><br /><span>ￂ</span></div>				<!-- HANGUL LETTER A -->
 			<div><span>ᅢ</span><br /><span>ￃ</span></div>				<!-- HANGUL LETTER AE -->
 			<div><span>ᅣ</span><br /><span>ￄ</span></div>				<!-- HANGUL LETTER YA -->
@@ -293,7 +274,6 @@
 			<div><span>ᅵ</span><br /><span>ￜ</span></div>				<!-- HANGUL LETTER I -->
 
 		<!-- FULLWIDTH SIGN -->
-			<br />
 			<div><span>￠</span><br /><span>¢</span></div>				<!-- CENT SIGN -->
 			<div><span>￡</span><br /><span>£</span></div>				<!-- POUND SIGN -->
 			<div><span>￢</span><br /><span>¬</span></div>				<!-- NOT SIGN -->
@@ -303,8 +283,7 @@
 			<div><span>￦</span><br /><span>₩</span></div>				<!-- WON SIGN -->
 
 		<!-- HALFWIDTH SIGN -->
-			<br />
-			<div><span>｜</span><br /><span>￨</span></div>				<!-- FORMS LIGHT VERTICAL -->
+			<div><span>│</span><br /><span>￨</span></div>				<!-- FORMS LIGHT VERTICAL -->
 			<div><span>←</span><br /><span>￩</span></div>				<!-- LEFTWARDS ARROW -->
 			<div><span>↑</span><br /><span>￪</span></div>				<!-- UPWARDS ARROW -->
 			<div><span>→</span><br /><span>￫</span></div>				<!-- RIGHTWARDS ARROW -->
@@ -313,39 +292,26 @@
 			<div><span>○</span><br /><span>￮</span></div>					<!-- WHITE CIRCLE -->
 
 		<!-- HALFWIDTH LATIN -->
-			<br />
 			<div><span>Ａ</span><br /><span>Ａ</span></div>
 			<div><span>Ｂ</span><br /><span>Ｂ</span></div>
 			<div><span>Ｃ</span><br /><span>Ｃ</span></div>
-			<br />
+
 			<div><span>ａ</span><br /><span>ａ</span></div>
 			<div><span>ｂ</span><br /><span>ｂ</span></div>
 			<div><span>ｃ</span><br /><span>ｃ</span></div>
 
 		<!-- FULLWIDTH KANA -->
-			<br />
 			<div><span>あ</span><br /><span>あ</span></div>
 			<div><span>い</span><br /><span>い</span></div>
 			<div><span>う</span><br /><span>う</span></div>
 			<div><span>え</span><br /><span>え</span></div>
 			<div><span>お</span><br /><span>お</span></div>
-			<br />
+
 			<div><span>ア</span><br /><span>ア</span></div>
 			<div><span>イ</span><br /><span>イ</span></div>
 			<div><span>ウ</span><br /><span>ウ</span></div>
 			<div><span>エ</span><br /><span>エ</span></div>
 			<div><span>オ</span><br /><span>オ</span></div>
 		</div>
-		<p id="fontChange" style="display: none;">
-			If you are unable to see font glyphs for certain characters using the browsers default font, install the <a href="http://ossipedia.ipa.go.jp/ipafont/">IPA Font(http://ossipedia.ipa.go.jp/ipafont/)</a> and apply it.
-			<button type="button" onclick="setFontFamily()">
-				Apply
-			</button>
-		</p>
-		<script type="text/javascript">
-			if (document.getElementById) {
-				document.getElementById('fontChange').style.display = 'block'
-			}
-		</script>
 	</body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/break-spaces-tab-004.html b/tests/wpt/web-platform-tests/css/css-text/white-space/break-spaces-tab-004.html
index 4ccbdd0f21a..bee61597fa1 100644
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/break-spaces-tab-004.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/break-spaces-tab-004.html
@@ -11,9 +11,9 @@ div {
   font: 20px/1 Ahem;
 }
 #test {
-  white-space: pre-wrap;
+  white-space: break-spaces;
   color: green;
-  width: 2ch;
+  width: 1ch;
 }
 #ref {
   color: red;
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-001-ref.html b/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-001-ref.html
index 232360ba387..3fbc32b1b1e 100644
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-001-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-001-ref.html
@@ -9,6 +9,7 @@ div {
   color: transparent;
   font-size: 50px;
   background: green;
+  width: 2em;
 }
 </style>
 
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-003-ref.html b/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-003-ref.html
index c551c608be1..0047109982c 100644
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-003-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/reference/white-space-intrinsic-size-003-ref.html
@@ -9,6 +9,7 @@ div {
   color: transparent;
   font-size: 50px;
   background: green;
+  width: 1em;
 }
 </style>
 
diff --git a/tests/wpt/web-platform-tests/css/css-text/white-space/trailing-space-position-001.html b/tests/wpt/web-platform-tests/css/css-text/white-space/trailing-space-position-001.html
new file mode 100644
index 00000000000..648ae23dccb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/trailing-space-position-001.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<title>CSS Test: Positions of trailing collapsible spaces</title>
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#white-space-phase-2">
+<link rel="author" title="Koji Ishii" href="mailto:kojii@chromium.org">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+.container > div {
+  font-family: Ahem;
+  font-size: 10px;
+  line-height: 1;
+  color: gray;
+  width: 5ch;
+  outline: 2px solid orange;
+  margin-bottom: 6px;
+  position: relative;
+}
+.pre-wrap {
+  white-space: pre-wrap;
+}
+.bg { background: purple; }
+.h { outline: 4px red solid; }
+</style>
+<body>
+  <section class="container">
+    <div>1234<span data-line="0" class="h"> </span>567</div>
+    <div>1234 <span data-line="0" class="h"> </span>567</div>
+    <div>1234567<span data-line="0" class="h"> </span>567</div>
+    <div>1234567 <span data-line="0" class="h"> </span>567</div>
+    <div class="pre-wrap">1234<span data-line="0" class="bg"> </span>567</div>
+  </section>
+<script>
+for (let e of document.querySelectorAll('[data-line]')) {
+  test(() => {
+    let y = e.offsetTop;
+    assert_equals(Math.round(y / 10), parseInt(e.dataset.line));
+  });
+}
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-005.html b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-005.html
index 4bb523ab7ca..1e71ec71117 100644
--- a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-005.html
+++ b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-005.html
@@ -14,7 +14,7 @@ div {
 </style>
 
 <p>This test passes if the four characters below are arranged in a two-by-two square.
-<div lang=ja>字字　字字</div>
+<div>字字　字字</div>
 <!--
 If keep-all has no effect at all, breaks are allowed everywhere,
 and the result will be:
diff --git a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-006.html b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-006.html
index 8845ea21edd..7bf9a15a9cc 100644
--- a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-006.html
+++ b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-006.html
@@ -15,7 +15,7 @@ span { color: transparent }
 </style>
 
 <p>This test passes if the four characters below are arranged in a two-by-two square.
-<div lang=ja>字字<span>、</span>字字</div>
+<div>字字<span>、</span>字字</div>
 <!--
 U+3001 : IDEOGRAPHIC COMMA is made transparent for visual simplicity,
 the change in color has no effect on layout.
diff --git a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-007.html b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-007.html
index e1bc9a52053..443cccbc9da 100644
--- a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-007.html
+++ b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-007.html
@@ -16,7 +16,7 @@ div {
 </style>
 
 <p>This test passes if the four characters below are arranged in a two-by-two square.
-<div lang=ja>字字　字字</div>
+<div>字字　字字</div>
 <!--
 If keep-all has no effect at all, breaks are allowed everywhere,
 and the result will be:
diff --git a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-008.html b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-008.html
index 16529b0619e..6532e41609f 100644
--- a/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-008.html
+++ b/tests/wpt/web-platform-tests/css/css-text/word-break/word-break-keep-all-008.html
@@ -16,7 +16,7 @@ div {
 </style>
 
 <p>This test passes if the four characters below are arranged in a two-by-two square.
-<div lang=ja>字字　字字</div>
+<div>字字　字字</div>
 <!--
 If keep-all has no effect at all, breaks are allowed everywhere,
 and the result will be:
diff --git a/tests/wpt/web-platform-tests/css/css-transforms/animation/rotate-interpolation.html b/tests/wpt/web-platform-tests/css/css-transforms/animation/rotate-interpolation.html
index dbf66a734f4..1ce74f76d25 100644
--- a/tests/wpt/web-platform-tests/css/css-transforms/animation/rotate-interpolation.html
+++ b/tests/wpt/web-platform-tests/css/css-transforms/animation/rotate-interpolation.html
@@ -1,67 +1,235 @@
 <!DOCTYPE html>
 <html>
-  <head>
-    <meta charset="utf-8">
-    <title>rotate interpolation</title>
-    <link rel="help" href="https://drafts.csswg.org/css-transforms-2/#propdef-rotate">
-    <meta name="assert" content="rotate supports animation.">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-    <script src="/css/support/interpolation-testcommon.js"></script>
-  </head>
-  <body>
-    <script>
-      test_interpolation({
-        property: 'rotate',
-        from: '100deg',
-        to: '180deg',
-      }, [
-        {at: -1, expect: '20deg'},
-        {at: 0, expect: '100deg'},
-        {at: 0.125, expect: '110deg'},
-        {at: 0.875, expect: '170deg'},
-        {at: 1, expect: '180deg'},
-        {at: 2, expect: '260deg'}
-      ]);
-
-      test_interpolation({
-        property: 'rotate',
-        from: '45deg',
-        to: '-1 1 0 60deg',
-      }, [
-        {at: -1, expect: '0.447214 -0.447214 0.774597 104.478deg'},
-        {at: 0, expect: '45deg'},
-        {at: 0.125, expect: '-0.136456 0.136456 0.981203 40.6037deg'},
-        {at: 0.875, expect: '-0.70246 0.70246 0.114452 53.1994deg'},
-        {at: 1, expect: '-1 1 0 60deg'},
-        {at: 2, expect: '-0.637897 0.637897 -0.431479 124.975deg'}
-      ]);
-
-      test_interpolation({
-        property: 'rotate',
-        from: 'none',
-        to: '7 -8 9 400grad',
-      }, [
-        {at: -1, expect: '7 -8 9 -400grad'},
-        {at: 0, expect: 'none'},
-        {at: 0.125, expect: '7 -8 9 50grad'},
-        {at: 0.875, expect: '7 -8 9 350grad'},
-        {at: 1, expect: '7 -8 9 400grad'},
-        {at: 2, expect: '7 -8 9 800grad'}
-      ]);
-
-      test_interpolation({
-        property: 'rotate',
-        from: 'none',
-        to: 'none',
-      }, [
-        {at: -1, expect: 'none'},
-        {at: 0, expect: 'none'},
-        {at: 0.125, expect: 'none'},
-        {at: 0.875, expect: 'none'},
-        {at: 1, expect: 'none'},
-        {at: 2, expect: 'none'}
-      ]);
-    </script>
-  </body>
+<head>
+<meta charset="utf-8">
+<title>rotate interpolation</title>
+<link rel="help" href="https://drafts.csswg.org/css-transforms-2/#propdef-rotate">
+
+<meta name="assert" content="rotate supports animation.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+</head>
+
+<style>
+.parent {
+  rotate: 90deg;
+}
+
+.target {
+  width: 40px;
+  height: 20px;
+  background-color: grey;
+  rotate: 10deg;
+}
+
+.expected {
+  background-color: green;
+}
+</style>
+
+<template id="target-template">
+<div class="parent">
+    <div class="target">Text</div>
+</div>
+</template>
+
+<body>
+<script>
+test_interpolation({
+  property: 'rotate',
+  from: '100deg',
+  to: '180deg',
+}, [
+  {at: -1, expect: '20deg'},
+  {at: 0, expect: '100deg'},
+  {at: 0.125, expect: '110deg'},
+  {at: 0.875, expect: '170deg'},
+  {at: 1, expect: '180deg'},
+  {at: 2, expect: '260deg'}
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '45deg',
+  to: '-1 1 0 60deg',
+}, [
+  {at: -1, expect: '0.447214 -0.447214 0.774597 104.478deg'},
+  {at: 0, expect: '45deg'},
+  {at: 0.125, expect: '-0.136456 0.136456 0.981203 40.6037deg'},
+  {at: 0.875, expect: '-0.70246 0.70246 0.114452 53.1994deg'},
+  {at: 1, expect: '-1 1 0 60deg'},
+  {at: 2, expect: '-0.637897 0.637897 -0.431479 124.975deg'}
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: 'none',
+  to: '7 -8 9 400grad',
+}, [
+  {at: -1, expect: '7 -8 9 -400grad'},
+  {at: 0, expect: 'none'},
+  {at: 0.125, expect: '7 -8 9 50grad'},
+  {at: 0.875, expect: '7 -8 9 350grad'},
+  {at: 1, expect: '7 -8 9 400grad'},
+  {at: 2, expect: '7 -8 9 800grad'}
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: 'none',
+  to: 'none',
+}, [
+  {at: -1, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.125, expect: 'none'},
+  {at: 0.875, expect: 'none'},
+  {at: 1, expect: 'none'},
+  {at: 2, expect: 'none'}
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: 'none',
+  to: '30deg',
+}, [
+  {at: -1, expect: '-30deg'},
+  {at: 0, expect: 'none'},
+  {at: 0.25, expect: '7.5deg'},
+  {at: 0.75, expect: '22.5deg'},
+  {at: 1, expect: '30deg'},
+  {at: 2, expect: '60deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: neutralKeyframe,
+  to: '30deg',
+}, [
+  {at: -1, expect: '-10deg'},
+  {at: 0, expect: '10deg'},
+  {at: 0.25, expect: '15deg'},
+  {at: 0.75, expect: '25deg'},
+  {at: 1, expect: '30deg'},
+  {at: 2, expect: '50deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: 'inherit',
+  to: '270deg',
+}, [
+  {at: -1, expect: '-90deg'},
+  {at: 0, expect: '90deg'},
+  {at: 0.25, expect: '135deg'},
+  {at: 0.75, expect: '225deg'},
+  {at: 1, expect: '270deg'},
+  {at: 2, expect: '450deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: 'unset',
+  to: '30deg',
+}, [
+  {at: -1, expect: '-30deg'},
+  {at: 0, expect: 'none'},
+  {at: 0.25, expect: '7.5deg'},
+  {at: 0.75, expect: '22.5deg'},
+  {at: 1, expect: '30deg'},
+  {at: 2, expect: '60deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '100deg',
+  to: '-100deg',
+}, [
+  {at: -1, expect: '300deg'},
+  {at: 0, expect: '100deg'},
+  {at: 0.25, expect: '50deg'},
+  {at: 0.75, expect: '-50deg'},
+  {at: 1, expect: '-100deg'},
+  {at: 2, expect: '-300deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '0 1 0 100deg',
+  to: '0 1 0 -100deg',
+}, [
+  {at: -1, expect: '0 1 0 300deg'},
+  {at: 0, expect: '0 1 0 100deg'},
+  {at: 0.25, expect: '0 1 0 50deg'},
+  {at: 0.75, expect: '0 1 0 -50deg'},
+  {at: 1, expect: '0 1 0 -100deg'},
+  {at: 2, expect: '0 1 0 -300deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '1 -2.5 3.64 100deg',
+  to: '1 -2.5 3.64 -100deg',
+}, [
+  {at: -1, expect: '1 -2.5 3.64 300deg'},
+  {at: 0, expect: '1 -2.5 3.64 100deg'},
+  {at: 0.25, expect: '1 -2.5 3.64 50deg'},
+  {at: 0.75, expect: '1 -2.5 3.64 -50deg'},
+  {at: 1, expect: '1 -2.5 3.64 -100deg'},
+  {at: 2, expect: '1 -2.5 3.64 -300deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '1 0 0 0deg',
+  to: '0 1 0 10deg',
+}, [
+  {at: -1, expect: '0 1 0 -10deg'},
+  {at: 0, expect: '1 0 0 0deg'},
+  {at: 0.25, expect: '0 1 0 2.5deg'},
+  {at: 0.75, expect: '0 1 0 7.5deg'},
+  {at: 1, expect: '0 1 0 10deg'},
+  {at: 2, expect: '0 1 0 20deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '1 1 0 90deg',
+  to: '0 1 1 135deg',
+}, [
+  {at: -1, expect: '0.67 -0.06 -0.74 124.97deg'},
+  {at: 0, expect: '1 1 0 90deg'},
+  {at: 0.25, expect: '0.54 0.8 0.26 94.83deg'},
+  {at: 0.75, expect: '0.17 0.78 0.61 118.68deg'},
+  {at: 1, expect: '0 1 1 135deg'},
+  {at: 2, expect: '0.52 -0.29 -0.81 151.04deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '0 1 0 0deg',
+  to: '1 0 0 450deg',
+}, [
+  {at: -1, expect: '1 0 0 -450deg'},
+  {at: 0, expect: '0 1 0 0deg'},
+  {at: 0.25, expect: '1 0 0 112.5deg'},
+  {at: 0.75, expect: '1 0 0 337.5deg'},
+  {at: 1, expect: '1 0 0 450deg'},
+  {at: 2, expect: '1 0 0 900deg'},
+]);
+
+test_interpolation({
+  property: 'rotate',
+  from: '1 0 0 450deg',
+  to: '0 1 0 0deg',
+}, [
+  {at: -1, expect: '1 0 0 900deg'},
+  {at: 0, expect: '1 0 0 450deg'},
+  {at: 0.25, expect: '1 0 0 337.5deg'},
+  {at: 0.75, expect: '1 0 0 112.5deg'},
+  {at: 1, expect: '0 1 0 0deg'},
+  {at: 2, expect: '1 0 0 -450deg'},
+]);
+</script>
+</body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-typed-om/stylevalue-subclasses/numeric-objects/parse.tentative.html b/tests/wpt/web-platform-tests/css/css-typed-om/stylevalue-subclasses/numeric-objects/parse.tentative.html
index 98384b6fcc5..c4904ded6b6 100644
--- a/tests/wpt/web-platform-tests/css/css-typed-om/stylevalue-subclasses/numeric-objects/parse.tentative.html
+++ b/tests/wpt/web-platform-tests/css/css-typed-om/stylevalue-subclasses/numeric-objects/parse.tentative.html
@@ -37,4 +37,9 @@ test(() => {
   assert_style_value_equals(expected, CSSNumericValue.parse('max(10px, 10%)'));
 }, 'Parsing max() is successful');
 
+test(() => {
+  const expected = new CSSMathMax(CSS.px(10), new CSSMathMin(CSS.percent(10), CSS.px(20)));
+  assert_style_value_equals(expected, CSSNumericValue.parse('clamp(10px, 10%, 20px)'));
+}, 'Parsing clamp() is successful');
+
 </script>
diff --git a/tests/wpt/web-platform-tests/css/cssom-view/table-border-collapse-client-width-height.html b/tests/wpt/web-platform-tests/css/cssom-view/table-border-collapse-client-width-height.html
new file mode 100644
index 00000000000..a7a1a435b22
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/cssom-view/table-border-collapse-client-width-height.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>CSSOM Test: Table with border-collapse: collapse's clientWidth/Height</title>
+<link rel="help" href="https://www.w3.org/TR/CSS2/tables.html#model" />
+<link rel="help" href="https://www.w3.org/TR/CSS2/tables.html#collapsing-borders" />
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#extension-to-the-element-interface" />
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<style>
+  table {
+    border-collapse: collapse;
+  }
+  td {
+    border: 8px solid #faa;
+  }
+</style>
+<table>
+  <tbody>
+    <tr>
+      <td>a</td>
+      <td>b</td>
+    </tr>
+    <tr>
+      <td>c</td>
+      <td>d</td>
+    </tr>
+  </tbody>
+</table>
+<script type="text/javascript">
+  var table = document.getElementsByTagName('table')[0];
+  test(function() {
+    assert_equals(table.clientWidth, table.offsetWidth);
+    assert_equals(table.clientHeight, table.offsetHeight);
+  }, "Table's clientWidth/Height and OffsetWidth/Height should be the same");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/cssom-view/table-border-separate-client-width-height.html b/tests/wpt/web-platform-tests/css/cssom-view/table-border-separate-client-width-height.html
new file mode 100644
index 00000000000..d960d713dcf
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/cssom-view/table-border-separate-client-width-height.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>CSSOM Test: Table with border-collapse: separate's clientWidth/Height</title>
+<link rel="help" href="https://www.w3.org/TR/CSS2/tables.html#model" />
+<link rel="help" href="https://www.w3.org/TR/CSS2/tables.html#separated-borders" />
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#extension-to-the-element-interface" />
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<style>
+  table {
+    border-collapse: separate;
+  }
+  td {
+    border: 8px solid #faa;
+  }
+</style>
+<table>
+  <tbody>
+    <tr>
+      <td>a</td>
+      <td>b</td>
+    </tr>
+    <tr>
+      <td>c</td>
+      <td>d</td>
+    </tr>
+  </tbody>
+</table>
+<script type="text/javascript">
+  var table = document.getElementsByTagName('table')[0];
+  test(function() {
+    assert_equals(table.clientWidth, table.offsetWidth);
+    assert_equals(table.clientHeight, table.offsetHeight);
+  }, "Table's clientWidth/Height and OffsetWidth/Height should be the same");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/cssom-view/table-with-border-client-width-height.html b/tests/wpt/web-platform-tests/css/cssom-view/table-with-border-client-width-height.html
new file mode 100644
index 00000000000..4e9a5deed2e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/cssom-view/table-with-border-client-width-height.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<title>CSSOM Test: Table with its own specified border's clientWidth/Height</title>
+<link rel="help" href="https://www.w3.org/TR/CSS2/tables.html#model" />
+<link rel="help" href="https://www.w3.org/TR/CSS2/tables.html#separated-borders" />
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#extension-to-the-element-interface" />
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<style>
+  table {
+    border: 8px solid #faa;
+  }
+</style>
+<table>
+  <tbody>
+    <tr>
+      <td>a</td>
+      <td>b</td>
+    </tr>
+    <tr>
+      <td>c</td>
+      <td>d</td>
+    </tr>
+  </tbody>
+</table>
+<script type="text/javascript">
+  var table = document.getElementsByTagName('table')[0];
+  test(function() {
+    assert_equals(table.clientWidth, table.offsetWidth);
+    assert_equals(table.clientHeight, table.offsetHeight);
+  }, "Table's clientWidth/Height and OffsetWidth/Height should be the same");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008-ref.xhtml b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008-ref.xhtml
new file mode 100644
index 00000000000..19049d3895c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008-ref.xhtml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!-- Reference case for behavior of 'baseline' and 'last baseline' values
+     for align-items and align-self for sideways writing modes.
+-->
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <title>CSS Reftest Reference</title>
+    <link rel="author" title="Brad Werth" href="mailto:bwerth@mozilla.com"/>
+    <style>
+      .container {
+        float: left;
+        display: flex;
+        writing-mode: sideways-rl;
+        border: 1px dashed blue;
+        font: 14px sans-serif;
+        width: 80px;
+      }
+
+      .reverse { flex-flow: row wrap-reverse; }
+
+      .start  { align-self: start; }
+      .end    { align-self: end; }
+
+      .offset { margin-right: 10px;
+                margin-left: 3px; }
+
+      .lime   { background: lime;   }
+      .yellow { background: yellow; }
+      .orange { background: orange; }
+      .pink   { background: pink;   }
+
+      .ib     { display: inline-block; }
+    </style>
+  </head>
+  <body>
+    <div class="container">
+      <div class="lime offset start">one line (first)</div
+      ><div class="yellow offset end">one line (last)</div
+      ><div class="orange offset end">two<br/>lines and offset (last)</div
+      ><div class="pink offset start">offset (first)</div>
+    </div>
+    <div class="container reverse">
+      <div class="lime offset end">one line (first)</div
+      ><div class="offset start"><div class="yellow ib">one line (last)</div
+      ><div class="orange ib">two<br/>lines and offset (last)</div></div
+      ><div class="pink offset end">offset (first)</div>
+    </div>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008.xhtml b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008.xhtml
new file mode 100644
index 00000000000..00bc4d9fce8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-align-self-baseline-horiz-008.xhtml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!-- Testcase for behavior of 'baseline' and 'last baseline' values
+     for align-items (and align-self, implicitly) for sideways
+     writing modes. This test confirms non-interference between the
+     'baseline' and 'last baseline' items.
+-->
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <title>CSS Test: Baseline alignment of block flex items with 'baseline' and 'last-baseline' values for 'align-self' against each other.</title>
+    <link rel="author" title="Brad Werth" href="mailto:bwerth@mozilla.com"/>
+    <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#baseline-participation"/>
+    <link rel="match" href="flexbox-align-self-baseline-horiz-008-ref.xhtml"/>
+    <style>
+      .container {
+        float: left;
+        display: flex;
+        writing-mode: sideways-rl;
+        border: 1px dashed blue;
+        font: 14px sans-serif;
+        width: 80px;
+      }
+
+      .reverse { flex-flow: row wrap-reverse; }
+
+      .base     { align-self: baseline; }
+      .lastbase { align-self: last baseline; }
+
+      .offset { margin-right: 10px;
+                margin-left: 3px; }
+
+      .lime   { background: lime;   }
+      .yellow { background: yellow; }
+      .orange { background: orange; }
+      .pink   { background: pink;   }
+    </style>
+  </head>
+  <body>
+    <div class="container">
+      <div class="lime base">one line (first)</div>
+      <div class="yellow lastbase">one line (last)</div>
+      <div class="orange offset lastbase">two<br/>lines and offset (last)</div>
+      <div class="pink offset base">offset (first)</div>
+    </div>
+    <div class="container reverse">
+      <div class="lime base">one line (first)</div>
+      <div class="yellow lastbase">one line (last)</div>
+      <div class="orange offset lastbase">two<br/>lines and offset (last)</div>
+      <div class="pink offset base">offset (first)</div>
+    </div>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/reftest.list b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/reftest.list
index 6f90914621b..2493ab155b0 100644
--- a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/reftest.list
+++ b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/flexbox/reftest.list
@@ -24,6 +24,7 @@
 == flexbox-align-self-baseline-horiz-005.xhtml flexbox-align-self-baseline-horiz-005-ref.xhtml
 == flexbox-align-self-baseline-horiz-006.xhtml flexbox-align-self-baseline-horiz-006-ref.xhtml
 == flexbox-align-self-baseline-horiz-007.xhtml flexbox-align-self-baseline-horiz-007-ref.xhtml
+== flexbox-align-self-baseline-horiz-008.xhtml flexbox-align-self-baseline-horiz-008-ref.xhtml
 
 == flexbox-align-self-stretch-vert-001.html flexbox-align-self-stretch-vert-001-ref.html
 == flexbox-align-self-stretch-vert-002.html flexbox-align-self-stretch-vert-002-ref.html
diff --git a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/reftest.list b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/reftest.list
index b8373487ae8..d3031a49b89 100644
--- a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/reftest.list
+++ b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/reftest.list
@@ -8,6 +8,7 @@
 == will-change-stacking-context-perspective-1.html green-square-100-by-100-ref.html
 == will-change-stacking-context-position-1.html green-square-100-by-100-ref.html
 == will-change-stacking-context-transform-1.html green-square-100-by-100-ref.html
+== will-change-stacking-context-translate-1.html green-square-100-by-100-ref.html
 == will-change-stacking-context-transform-style-1.html green-square-100-by-100-ref.html
 == will-change-stacking-context-z-index-1.html green-square-100-by-100-ref.html
 == will-change-fixpos-cb-contain-1.html green-square-100-by-100-offset-ref.html
@@ -16,4 +17,5 @@
 == will-change-fixpos-cb-perspective-1.html green-square-100-by-100-offset-ref.html
 == will-change-fixpos-cb-position-1.html green-square-100-by-100-offset-ref.html
 == will-change-fixpos-cb-transform-1.html green-square-100-by-100-offset-ref.html
+== will-change-fixpos-cb-translate-1.html green-square-100-by-100-offset-ref.html
 == will-change-fixpos-cb-transform-style-1.html green-square-100-by-100-offset-ref.html
diff --git a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-fixpos-cb-translate-1.html b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-fixpos-cb-translate-1.html
new file mode 100644
index 00000000000..7ff0dfe768a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-fixpos-cb-translate-1.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS will-change: 'will-change: translate' creates a containing block for fixed positioned elements</title>
+<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
+<link rel="help" href="https://drafts.csswg.org/css-will-change-1/#will-change">
+<link rel="help" href="https://drafts.csswg.org/css-transforms-2/#propdef-translate">
+<link rel="match" href="green-square-100-by-100-offset-ref.html">
+<meta name="assert" content="If any non-initial value of a property would cause the element to generate a containing block for fixed-position elements, specifying that property in will-change must cause the element to generate a containing block for fixed-position elements.">
+<style>
+html, body { margin: 0; padding: 0; }
+div { width: 100px; height: 100px }
+#wc { will-change: translate; margin: 100px 0 0 100px; background: red }
+.child { top: 0; left: 0; width: 50px; background: green }
+#fixpos { position: fixed }
+#abspos { position: absolute; left: 50px }
+</style>
+<body>
+  <div id="wc">
+    <div class="child" id="fixpos">
+    </div>
+    <div class="child" id="abspos">
+    </div>
+  </div>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-translate-1.html b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-translate-1.html
new file mode 100644
index 00000000000..1e1e8355d6c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/vendor-imports/mozilla/mozilla-central-reftests/will-change/will-change-stacking-context-translate-1.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS will-change: 'will-change: translate' creates a stacking context</title>
+<link rel="author" title="Mozilla" href="http://www.mozilla.org/">
+<link rel="help" href="https://drafts.csswg.org/css-will-change-1/#will-change">
+<link rel="help" href="https://drafts.csswg.org/css-transforms-2/#propdef-translate">
+<link rel="match" href="green-square-100-by-100-ref.html">
+<meta name="assert" content="If any non-initial value of a property would create a stacking context on the element, specifying that property in will-change must create a stacking context on the element.">
+<style>
+html, body { margin: 0; padding: 0; }
+div { width: 100px; height: 100px }
+#wc { will-change: translate; background: red }
+#child { position: absolute; top: 0; left: 0; z-index: -1; background: green }
+</style>
+<body>
+  <div id="wc">
+    <div id="child">
+    </div>
+  </div>
+</body>
diff --git a/tests/wpt/web-platform-tests/docs/writing-tests/test-templates.md b/tests/wpt/web-platform-tests/docs/writing-tests/test-templates.md
index f34b1d8d333..858758b4c8e 100644
--- a/tests/wpt/web-platform-tests/docs/writing-tests/test-templates.md
+++ b/tests/wpt/web-platform-tests/docs/writing-tests/test-templates.md
@@ -54,7 +54,7 @@ Filename: `{description}.html` or `{test-topic}-###-ref.html`
 
 ### SVG test
 
-``` svg
+``` xml
 <svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
   <title>${1:Test title}</title>
   <metadata>
@@ -69,7 +69,7 @@ Filename: `{test-topic}-###.svg`
 
 ### SVG reference
 
-``` svg
+``` xml
 <svg xmlns="http://www.w3.org/2000/svg">
   <title>${1:Reference title}</title>
   ${2:Reference content}
@@ -97,7 +97,7 @@ Filename: `{test-topic}-###.html`
 
 ### SVG
 
-``` svg
+``` xml
 <svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
   <title>${1:Test title}</title>
   <metadata>
@@ -133,7 +133,7 @@ Filename: `{test-topic}-###-manual.html`
 
 #### SVG
 
-``` svg
+``` xml
 <svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
   <title>${1:Test title}</title>
   <metadata>
diff --git a/tests/wpt/web-platform-tests/encoding/streams/backpressure.any.js b/tests/wpt/web-platform-tests/encoding/streams/backpressure.any.js
index f17e149ed9e..718942fd8f4 100644
--- a/tests/wpt/web-platform-tests/encoding/streams/backpressure.any.js
+++ b/tests/wpt/web-platform-tests/encoding/streams/backpressure.any.js
@@ -4,11 +4,11 @@
 
 const classes = [
   {
-    constructor: TextDecoderStream,
+    name: 'TextDecoderStream',
     input: new Uint8Array([65])
   },
   {
-    constructor: TextEncoderStream,
+    name: 'TextEncoderStream',
     input: 'A'
   }
 ];
@@ -17,7 +17,7 @@ const microtasksRun = () => new Promise(resolve => step_timeout(resolve, 0));
 
 for (const streamClass of classes) {
   promise_test(async () => {
-    const stream = new streamClass.constructor();
+    const stream = new self[streamClass.name]();
     const writer = stream.writable.getWriter();
     const reader = stream.readable.getReader();
     const events = [];
@@ -32,10 +32,10 @@ for (const streamClass of classes) {
     assert_array_equals(events, ['paused', 'read', 'write'],
                         'write should happen after read');
   }, 'write() should not complete until read relieves backpressure for ' +
-     `${streamClass.constructor.name}`);
+     `${streamClass.name}`);
 
   promise_test(async () => {
-    const stream = new streamClass.constructor();
+    const stream = new self[streamClass.name]();
     const writer = stream.writable.getWriter();
     const reader = stream.readable.getReader();
     const events = [];
@@ -56,5 +56,5 @@ for (const streamClass of classes) {
                                  'write2'],
                         'writes should not happen before read2');
   }, 'additional writes should wait for backpressure to be relieved for ' +
-     `class ${streamClass.constructor.name}`);
+     `class ${streamClass.name}`);
 }
diff --git a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html
index d999c977dbe..872db228495 100644
--- a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html
+++ b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html
@@ -10,7 +10,7 @@ const check_report_format = ([reports, observer]) => {
   const report = reports[0];
   assert_equals(report.type, "feature-policy-violation");
   assert_equals(report.url, document.location.href);
-  assert_equals(report.body.featureId, "xr");
+  assert_equals(report.body.featureId, "xr-spatial-tracking");
   assert_equals(report.body.sourceFile, document.location.href);
   assert_equals(typeof report.body.lineNumber, "number");
   assert_equals(typeof report.body.columnNumber, "number");
@@ -23,11 +23,12 @@ promise_test(async t => {
                           {types: ['feature-policy-violation']}).observe();
   });
   try {
-    await navigator.xr.supportsSession('inline');
+    let supported = await navigator.xr.isSessionSupported('immersive-vr');
   } catch (err) {
-    // If no XR devices are available, supportsSession() will reject with a
-    // NotSupportedError, but the report should be generated anyway.
-    assert_equals(err.name, 'NotSupportedError');
+    // IsSessionSupported should only throw with a feature policy violation;
+    // however, inline does not trigger the feature policy,
+    // so immersive-vr must be used.
+    assert_unreached("isSessionSupported should not throw in ReportOnly mode");
   }
   check_report_format(await report);
 }, "XR report only mode");
diff --git a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html.headers b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html.headers
index 47b7c824b35..45df4936e27 100644
--- a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html.headers
+++ b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-report-only.https.html.headers
@@ -1 +1 @@
-Feature-Policy-Report-Only: xr 'none'
+Feature-Policy-Report-Only: xr-spatial-tracking 'none'
diff --git a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html
index 68a3e4e737b..edc75e82400 100644
--- a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html
+++ b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html
@@ -10,7 +10,7 @@ var check_report_format = (reports, observer) => {
   let report = reports[0];
   assert_equals(report.type, "feature-policy-violation");
   assert_equals(report.url, document.location.href);
-  assert_equals(report.body.featureId, "xr");
+  assert_equals(report.body.featureId, "xr-spatial-tracking");
   assert_equals(report.body.sourceFile, document.location.href);
   assert_equals(typeof report.body.lineNumber, "number");
   assert_equals(typeof report.body.columnNumber, "number");
@@ -22,8 +22,9 @@ promise_test(async (t) => {
     new ReportingObserver((reports, observer) => resolve([reports, observer]),
                           {types: ['feature-policy-violation']}).observe();
   });
-  await promise_rejects(t, 'SecurityError', navigator.xr.supportsSession('inline'),
-                        "XR device access should not be allowed in this document.");
+  await promise_rejects(t, 'SecurityError',
+                        navigator.xr.isSessionSupported('immersive-vr'),
+                        "XR spatial tracking should not be allowed in this document.");
   const [reports, observer] = await report;
   check_report_format(reports, observer);
 }, "XR Report Format");
diff --git a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers
index ea8722131ce..2c758962332 100644
--- a/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers
+++ b/tests/wpt/web-platform-tests/feature-policy/reporting/xr-reporting.https.html.headers
@@ -1 +1 @@
-Feature-Policy: xr 'none'
+Feature-Policy: xr-spatial-tracking 'none'
diff --git a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.tentative.html b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html
index c9ce86869e1..c9ce86869e1 100644
--- a/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.tentative.html
+++ b/tests/wpt/web-platform-tests/html/rendering/replaced-elements/attributes-for-embedded-content-and-images/img-aspect-ratio.html
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/README.md b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/README.md
new file mode 100644
index 00000000000..204fd59dcb1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/README.md
@@ -0,0 +1,2 @@
+This directory contains an experimental feature that is not currently standardized due to a security
+issue. Support was removed in https://github.com/whatwg/html/pull/4943.
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.tentative.html
index e6da2db7ebc..e6da2db7ebc 100644
--- a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.html
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/invalid-content-type.tentative.html
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/module.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/module.tentative.html
index 93243853226..93243853226 100644
--- a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/module.html
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/module.tentative.html
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/non-object.any.js b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/non-object.tentative.any.js
index dcbe60f2c2f..dcbe60f2c2f 100644
--- a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/non-object.any.js
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/non-object.tentative.any.js
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/parse-error.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/parse-error.tentative.html
index 68d3ef0a9ad..68d3ef0a9ad 100644
--- a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/parse-error.html
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/parse-error.tentative.html
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/utf8.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/utf8.tentative.html
index 1c0360b17e3..1c0360b17e3 100644
--- a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/utf8.html
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/utf8.tentative.html
diff --git a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.tentative.html
index 78e8b1d23fe..78e8b1d23fe 100644
--- a/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.html
+++ b/tests/wpt/web-platform-tests/html/semantics/scripting-1/the-script-element/json-module/valid-content-type.tentative.html
diff --git a/tests/wpt/web-platform-tests/interfaces/css-typed-om.idl b/tests/wpt/web-platform-tests/interfaces/css-typed-om.idl
index b54a16338ec..df9669e5637 100644
--- a/tests/wpt/web-platform-tests/interfaces/css-typed-om.idl
+++ b/tests/wpt/web-platform-tests/interfaces/css-typed-om.idl
@@ -65,6 +65,8 @@ interface CSSKeywordValue : CSSStyleValue {
     attribute USVString value;
 };
 
+typedef (DOMString or CSSKeywordValue) CSSKeywordish;
+
 typedef (double or CSSNumericValue) CSSNumberish;
 
 enum CSSNumericBaseType {
diff --git a/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl b/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl
index c2dc1f7a0b0..e41d7357b1a 100644
--- a/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl
+++ b/tests/wpt/web-platform-tests/interfaces/webrtc-stats.idl
@@ -48,13 +48,13 @@ enum RTCCodecType {
 };
 
 dictionary RTCReceivedRtpStreamStats : RTCRtpStreamStats {
-             unsigned long packetsReceived;
-             long packetsLost;
+             unsigned long long packetsReceived;
+             long long packetsLost;
              double jitter;
-             unsigned long packetsDiscarded;
-             unsigned long packetsRepaired;
-             unsigned long burstPacketsLost;
-             unsigned long burstPacketsDiscarded;
+             unsigned long long packetsDiscarded;
+             unsigned long long packetsRepaired;
+             unsigned long long burstPacketsLost;
+             unsigned long long burstPacketsDiscarded;
              unsigned long burstLossCount;
              unsigned long burstDiscardCount;
              double burstLossRate;
@@ -64,6 +64,7 @@ dictionary RTCReceivedRtpStreamStats : RTCRtpStreamStats {
              unsigned long framesDropped;
              unsigned long partialFramesLost;
              unsigned long fullFramesLost;
+
 };
 
 dictionary RTCInboundRtpStreamStats : RTCReceivedRtpStreamStats {
@@ -80,12 +81,12 @@ dictionary RTCInboundRtpStreamStats : RTCReceivedRtpStreamStats {
  boolean voiceActivityFlag;
  DOMHighResTimeStamp lastPacketReceivedTimestamp;
  double averageRtcpInterval;
- unsigned long fecPacketsReceived;
- unsigned long fecPacketsDiscarded;
+ unsigned long long fecPacketsReceived;
+ unsigned long long fecPacketsDiscarded;
  unsigned long long bytesReceived;
- unsigned long packetsFailedDecryption;
- unsigned long packetsDuplicated;
- record<USVString, unsigned long> perDscpPacketsReceived;
+ unsigned long long packetsFailedDecryption;
+ unsigned long long packetsDuplicated;
+ record<USVString, unsigned long long> perDscpPacketsReceived;
  unsigned long nackCount;
  unsigned long firCount;
  unsigned long pliCount;
@@ -94,6 +95,8 @@ dictionary RTCInboundRtpStreamStats : RTCReceivedRtpStreamStats {
  double jitterBufferDelay;
  unsigned long long jitterBufferEmittedCount;
  unsigned long long totalSamplesReceived;
+ unsigned long long samplesDecodedWithSilk;
+ unsigned long long samplesDecodedWithCelt;
  unsigned long long concealedSamples;
  unsigned long long silentConcealedSamples;
  unsigned long long concealmentEvents;
@@ -125,6 +128,7 @@ dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
              DOMString mediaSourceId;
              DOMString senderId;
              DOMString remoteId;
+             DOMString rid;
              DOMHighResTimeStamp lastPacketSentTimestamp;
              unsigned long packetsDiscardedOnSend;
              unsigned long long bytesDiscardedOnSend;
@@ -143,6 +147,8 @@ dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
              unsigned long framesDiscardedOnSend;
              unsigned long long qpSum;
              unsigned long long totalSamplesSent;
+             unsigned long long samplesEncodedWithSilk;
+             unsigned long long samplesEncodedWithCelt;
              boolean voiceActivityFlag;
              double totalEncodeTime;
              double totalPacketSendDelay;
@@ -150,7 +156,7 @@ dictionary RTCOutboundRtpStreamStats : RTCSentRtpStreamStats {
              RTCQualityLimitationReason qualityLimitationReason;
              record<DOMString, double> qualityLimitationDurations;
              unsigned long qualityLimitationResolutionChanges;
-             record<USVString, unsigned long> perDscpPacketsSent;
+             record<USVString, unsigned long long> perDscpPacketsSent;
              unsigned long nackCount;
              unsigned long firCount;
              unsigned long pliCount;
@@ -257,8 +263,8 @@ dictionary RTCDataChannelStats : RTCStats {
 };
 
 dictionary RTCTransportStats : RTCStats {
-             unsigned long packetsSent;
-             unsigned long packetsReceived;
+             unsigned long long packetsSent;
+             unsigned long long packetsReceived;
              unsigned long long bytesSent;
              unsigned long long bytesReceived;
              DOMString rtcpTransportStatsId;
@@ -302,8 +308,8 @@ dictionary RTCIceCandidatePairStats : RTCStats {
              DOMString remoteCandidateId;
              RTCStatsIceCandidatePairState state;
              boolean nominated;
-             unsigned long packetsSent;
-             unsigned long packetsReceived;
+             unsigned long long packetsSent;
+             unsigned long long packetsReceived;
              unsigned long long bytesSent;
              unsigned long long bytesReceived;
              DOMHighResTimeStamp lastPacketSentTimestamp;
@@ -353,6 +359,12 @@ dictionary RTCIceServerStats : RTCStats {
            double totalRoundTripTime;
 };
 
+dictionary RTCReceiverVideoTrackAttachmentStats : RTCVideoReceiverStats {
+};
+
+dictionary RTCReceiverAudioTrackAttachmentStats : RTCAudioReceiverStats {
+};
+
 partial dictionary RTCCodecStats {
    DOMString implementation;
 };
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative-ref.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative-ref.html
new file mode 100644
index 00000000000..f0b355c7bd9
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>fractions bevelled (reference)</title>
+  </head>
+  <body>
+    <p>Test passes is you see a blue rectangle <em>above</em> a green rectangle, separated by a horizontal bar.</p>
+    <p>
+      <math>
+        <mfrac>
+          <mspace width="100px" height="30px" style="background: lightblue"></mspace>
+          <mspace width="100px" height="30px" style="background: lightgreen"></mspace>
+        </mfrac>
+      </math>
+    </p>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative.html
new file mode 100644
index 00000000000..1f14044106e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/fractions/frac-legacy-bevelled-attribute.tentative.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>fractions bevelled</title>
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.mfrac">
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#fractions-mfrac">
+    <link rel="help" href="https://github.com/mathml-refresh/mathml/issues/29">
+    <meta name="assert" content="Verify that the MathML3 bevelled attribute is ignored.">
+    <link rel="match" href="frac-legacy-bevelled-attribute.tentative-ref.html">
+  </head>
+  <body>
+    <p>Test passes is you see a blue rectangle <em>above</em> a green rectangle, separated by a horizontal bar.</p>
+    <p>
+      <math>
+        <mfrac bevelled="true">
+          <mspace width="100px" height="30px" style="background: lightblue"></mspace>
+          <mspace width="100px" height="30px" style="background: lightgreen"></mspace>
+        </mfrac>
+      </math>
+    </p>
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>
+      MathMLFeatureDetection.ensure_for_match_reftest("has_mspace");
+      MathMLFeatureDetection.ensure_for_match_reftest("has_mfrac");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001-ref.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001-ref.html
new file mode 100644
index 00000000000..00c781b6e4f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>mfenced element</title>
+  </head>
+  <body>
+    <p>Test passes if you see 6 green squares and no red.</p>
+    <p>
+      <math>
+        <mrow>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+        </mrow>
+        <mrow>
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+        </mrow>
+      </math>
+    </p>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001.html
new file mode 100644
index 00000000000..7cc3e2ed840
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/mrow/legacy-mfenced-element-001.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>mfenced element</title>
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.mfenced">
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#new-display-math-value">
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#mathml-elements">
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#horizontally-group-sub-expressions-mrow">
+    <meta name="assert" content="Verify that the mfenced element is not supported.">
+    <link rel="match" href="legacy-mfenced-element-001-ref.html">
+  </head>
+  <body>
+    <p>Test passes if you see 6 green squares and no red.</p>
+    <p>
+      <math style="color: red">
+        <mfenced>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+        </mfenced>
+        <mfenced open="{" close="]" separators="?!">
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+          <mspace width="30px" height="30px" style="background: green"></mspace>
+          <mspace width="30px" height="30px" style="background: lightgreen"></mspace>
+        </mfenced>
+      </math>
+    </p>
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>
+      MathMLFeatureDetection.ensure_for_match_reftest("has_mspace");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative-ref.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative-ref.html
new file mode 100644
index 00000000000..c1bf2e46954
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative-ref.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>msub/msup/msubsup/mmultiscripts subscriptshift and superscriptshift attributes (reference)</title>
+  </head>
+  <body>
+    <p>Test passes if the green squares are not about 300px away from the blue squares.</p>
+    <p>
+      <math>
+        <mmultiscripts>
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mprescripts/>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </mmultiscripts>
+        <msub>
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </msub>
+        <msup>
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </msup>
+        <msubsup>
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </msubsup>
+      </math>
+    </p>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative.html b/tests/wpt/web-platform-tests/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative.html
new file mode 100644
index 00000000000..532271dbe04
--- /dev/null
+++ b/tests/wpt/web-platform-tests/mathml/presentation-markup/scripts/subsup-legacy-scriptshift-attributes-001.tentative.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>msub/msup/msubsup/mmultiscripts subscriptshift and superscriptshift attributes</title>
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.msub">
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.msup">
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.msunsup">
+    <link rel="help" href="https://www.w3.org/TR/MathML3/chapter3.html#presm.mmultiscripts">
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#subscripts-and-superscripts-msub-msup-msubsup">
+    <link rel="help" href="https://mathml-refresh.github.io/mathml-core/#prescripts-and-tensor-indices-mmultiscripts">
+    <link rel="match" href="subsup-legacy-scriptshift-attributes-001.tentative-ref.html">
+  </head>
+  <body>
+    <p>Test passes if the green squares are not about 300px away from the blue squares.</p>
+    <p>
+      <math>
+        <mmultiscripts subscriptshift="300px" superscriptshift="300px">
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mprescripts/>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </mmultiscripts>
+        <msub subscriptshift="300px">
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </msub>
+        <msup superscriptshift="300px">
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </msup>
+        <msubsup subscriptshift="300px" superscriptshift="300px">
+          <mspace width="30px" height="30px" style="background: blue;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+          <mspace width="10px" height="10px" style="background: lightgreen;"></mspace>
+        </msubsup>
+      </math>
+    </p>
+    <script src="/mathml/support/feature-detection.js"></script>
+    <script>
+      MathMLFeatureDetection.ensure_for_match_reftest("has_mspace");
+      MathMLFeatureDetection.ensure_for_match_reftest("has_msubsup");
+      MathMLFeatureDetection.ensure_for_match_reftest("has_mmultiscripts");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/native-file-system/native_FileSystemDirectoryHandle-getEntries.tentative.https.manual.window.js b/tests/wpt/web-platform-tests/native-file-system/native_FileSystemDirectoryHandle-getEntries.tentative.https.manual.window.js
new file mode 100644
index 00000000000..f27a44d1245
--- /dev/null
+++ b/tests/wpt/web-platform-tests/native-file-system/native_FileSystemDirectoryHandle-getEntries.tentative.https.manual.window.js
@@ -0,0 +1,4 @@
+// META: script=/resources/testdriver.js
+// META: script=resources/test-helpers.js
+// META: script=resources/native-fs-test-helpers.js
+// META: script=script-tests/FileSystemDirectoryHandle-getEntries.js
diff --git a/tests/wpt/web-platform-tests/native-file-system/sandboxed_FileSystemDirectoryHandle-getEntries.tentative.https.any.js b/tests/wpt/web-platform-tests/native-file-system/sandboxed_FileSystemDirectoryHandle-getEntries.tentative.https.any.js
new file mode 100644
index 00000000000..da620e2a3b1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/native-file-system/sandboxed_FileSystemDirectoryHandle-getEntries.tentative.https.any.js
@@ -0,0 +1,3 @@
+// META: script=resources/test-helpers.js
+// META: script=resources/sandboxed-fs-test-helpers.js
+// META: script=script-tests/FileSystemDirectoryHandle-getEntries.js
diff --git a/tests/wpt/web-platform-tests/native-file-system/script-tests/FileSystemDirectoryHandle-getEntries.js b/tests/wpt/web-platform-tests/native-file-system/script-tests/FileSystemDirectoryHandle-getEntries.js
new file mode 100644
index 00000000000..571683ccfd1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/native-file-system/script-tests/FileSystemDirectoryHandle-getEntries.js
@@ -0,0 +1,41 @@
+directory_test(async (t, root) => {
+  const file_name1 = 'foo1.txt';
+  const file_name2 = 'foo2.txt';
+  await createFileWithContents(t, file_name1, 'contents', /*parent=*/ root);
+  await createFileWithContents(t, file_name2, 'contents', /*parent=*/ root);
+
+  let abortIter = async (dir) => {
+    for await (let entry of dir.getEntries()) {
+      return entry.name;
+    }
+  };
+
+  try {
+    await abortIter(root);
+  } catch(e) {
+    assert_unreached('Error thrown on iteration abort.');
+  }
+
+}, 'getEntries(): returning early from an iteration works');
+
+directory_test(async (t, root) => {
+  const file_name1 = 'foo1.txt';
+  const file_name2 = 'foo2.txt';
+  await createFileWithContents(t, file_name1, 'contents', /*parent=*/ root);
+  await createFileWithContents(t, file_name2, 'contents', /*parent=*/ root);
+
+  let fullIter = async (dir) => {
+    let name;
+    for await (let entry of dir.getEntries()) {
+      name = entry.name;
+    }
+    return name;
+  };
+
+  try {
+    await fullIter(root);
+  } catch(e) {
+    assert_unreached('Error thrown on iteration.');
+  }
+
+}, 'getEntries(): full iteration works');
diff --git a/tests/wpt/web-platform-tests/resources/chromium/webusb-test.js b/tests/wpt/web-platform-tests/resources/chromium/webusb-test.js
index c4d4e8f1ac4..8bccfd1f724 100644
--- a/tests/wpt/web-platform-tests/resources/chromium/webusb-test.js
+++ b/tests/wpt/web-platform-tests/resources/chromium/webusb-test.js
@@ -241,23 +241,39 @@ class FakeDevice {
     return Promise.resolve({ success: true });
   }
 
-  controlTransferIn(params, length, timeout) {
+  async controlTransferIn(params, length, timeout) {
     assert_true(this.opened_);
-    assert_false(this.currentConfiguration_ == null, 'device configured');
-    return Promise.resolve({
+
+    if ((params.recipient == device.mojom.UsbControlTransferRecipient.INTERFACE ||
+         params.recipient == device.mojom.UsbControlTransferRecipient.ENDPOINT) &&
+        this.currentConfiguration_ == null) {
+      return {
+        status: device.mojom.UsbTransferStatus.PERMISSION_DENIED,
+      };
+    }
+
+    return {
       status: device.mojom.UsbTransferStatus.OK,
       data: [length >> 8, length & 0xff, params.request, params.value >> 8,
              params.value & 0xff, params.index >> 8, params.index & 0xff]
-    });
+    };
   }
 
-  controlTransferOut(params, data, timeout) {
+  async controlTransferOut(params, data, timeout) {
     assert_true(this.opened_);
-    assert_false(this.currentConfiguration_ == null, 'device configured');
-    return Promise.resolve({
+
+    if ((params.recipient == device.mojom.UsbControlTransferRecipient.INTERFACE ||
+         params.recipient == device.mojom.UsbControlTransferRecipient.ENDPOINT) &&
+        this.currentConfiguration_ == null) {
+      return {
+        status: device.mojom.UsbTransferStatus.PERMISSION_DENIED,
+      };
+    }
+
+    return {
       status: device.mojom.UsbTransferStatus.OK,
       bytesWritten: data.byteLength
-    });
+    };
   }
 
   genericTransferIn(endpointNumber, length, timeout) {
diff --git a/tests/wpt/web-platform-tests/resources/chromium/webxr-test.js b/tests/wpt/web-platform-tests/resources/chromium/webxr-test.js
index eae4d64b446..df91abf6d7f 100644
--- a/tests/wpt/web-platform-tests/resources/chromium/webxr-test.js
+++ b/tests/wpt/web-platform-tests/resources/chromium/webxr-test.js
@@ -268,6 +268,7 @@ class MockRuntime {
     this.pose_ = {
       orientation: { x: q[0], y: q[1], z: q[2], w: q[3] },
       position: { x: p[0], y: p[1], z: p[2] },
+      emulatedPosition: emulatedPosition,
       angularVelocity: null,
       linearVelocity: null,
       angularAcceleration: null,
@@ -573,7 +574,7 @@ class MockRuntime {
       let submit_frame_sink;
       if (result.supportsSession) {
         submit_frame_sink = {
-          clientRequest: this.presentation_provider_.getClientRequest(),
+          clientReceiver: this.presentation_provider_.getClientReceiver(),
           provider: this.presentation_provider_.bindProvider(sessionOptions),
           transportOptions: options
         };
@@ -583,7 +584,7 @@ class MockRuntime {
         this.dataProviderBinding_ = new mojo.Binding(
             device.mojom.XRFrameDataProvider, this, dataProviderRequest);
 
-        let clientRequest = mojo.makeRequest(this.sessionClient_);
+        let clientReceiver = mojo.makeRequest(this.sessionClient_);
 
         let enabled_features = [];
         for(let i = 0; i < sessionOptions.requiredFeatures.length; i++) {
@@ -604,7 +605,7 @@ class MockRuntime {
           session: {
             submitFrameSink: submit_frame_sink,
             dataProvider: dataProviderPtr,
-            clientRequest: clientRequest,
+            clientReceiver: clientReceiver,
             displayInfo: this.displayInfo_,
             enabledFeatures: enabled_features,
           }
@@ -691,6 +692,7 @@ class MockXRInputSource {
     this.desc_dirty_ = true;
     this.pointer_offset_ = new gfx.mojom.Transform();
     this.pointer_offset_.matrix = getMatrixFromTransform(transform);
+    this.emulated_position_ = emulatedPosition;
   }
 
   disconnect() {
@@ -812,11 +814,11 @@ class MockXRInputSource {
 
     input_state.gamepad = this.gamepad_;
 
+    input_state.emulatedPosition = this.emulated_position_;
+
     if (this.desc_dirty_) {
       let input_desc = new device.mojom.XRInputSourceDescription();
 
-      input_desc.emulatedPosition = this.emulated_position_;
-
       switch (this.target_ray_mode_) {
         case 'gaze':
           input_desc.targetRayMode = device.mojom.XRTargetRayMode.GAZING;
@@ -955,7 +957,7 @@ class MockXRPresentationProvider {
     return providerPtr;
   }
 
-  getClientRequest() {
+  getClientReceiver() {
     this.submitFrameClient_ = new device.mojom.XRPresentationClientPtr();
     return mojo.makeRequest(this.submitFrameClient_);
   }
diff --git a/tests/wpt/web-platform-tests/shadow-dom/Element-interface-attachShadow-custom-element.html b/tests/wpt/web-platform-tests/shadow-dom/Element-interface-attachShadow-custom-element.html
index 5d862c49244..123d9c14c55 100644
--- a/tests/wpt/web-platform-tests/shadow-dom/Element-interface-attachShadow-custom-element.html
+++ b/tests/wpt/web-platform-tests/shadow-dom/Element-interface-attachShadow-custom-element.html
@@ -20,7 +20,7 @@ test(() => {
 
 test(() => {
   class ShadowDisabledElement extends HTMLElement {
-    static disabledFeatures = ['shadow'];
+    static get disabledFeatures() { return ['shadow']; }
   }
 
   // No definition. attachShadow() should succeed.
@@ -47,7 +47,7 @@ test(() => {
 
 test(() => {
   class ShadowDisabledHeadingElement extends HTMLHeadingElement {
-    static disabledFeatures = ['shadow'];
+    static get disabledFeatures() { return ['shadow']; }
   }
 
   // No definition. attachShadow() should succeed.
@@ -77,7 +77,7 @@ test(() => {
 
 test(() => {
   class CapitalShadowDisabledElement extends HTMLElement {
-    static disabledFeatures = ['SHADOW'];
+    static get disabledFeatures() { return ['shadow']; }
   }
 
   customElements.define('capital-shadow-disabled-element', CapitalShadowDisabledElement);
diff --git a/tests/wpt/web-platform-tests/svg/animations/interval-restart-events.html b/tests/wpt/web-platform-tests/svg/animations/interval-restart-events.html
new file mode 100644
index 00000000000..3c3ad89a323
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/animations/interval-restart-events.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<title>Event dispatching on interval restart</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<svg height="0">
+  <rect width="100" height="100" fill="blue">
+    <animate attributeName="x" begin="0s; 10ms" end="20ms" from="0" to="100"
+             id="target"/>
+    <set attributeName="visibility" begin="0s" end="50ms" from="visible" to="visible"
+         id="timekeeper"/>
+  </rect>
+</svg>
+<script>
+  async_test(t => {
+    let begin_count = 0, end_count = 0;
+    let target = document.getElementById("target");
+    target.addEventListener("beginEvent", t.step_func(() => {
+      begin_count++;
+    }));
+    target.addEventListener("endEvent", t.step_func(() => {
+      end_count++;
+    }));
+    let timekeeper = document.getElementById("timekeeper");
+    timekeeper.addEventListener("endEvent", t.step_func(() => {
+      requestAnimationFrame(t.step_func_done(() => {
+        assert_equals(begin_count, end_count);
+      }));
+    }));
+  });
+</script>
diff --git a/tests/wpt/web-platform-tests/tools/ci/tests/test_update_pr_preview.py b/tests/wpt/web-platform-tests/tools/ci/tests/test_update_pr_preview.py
deleted file mode 100644
index 056add73a92..00000000000
--- a/tests/wpt/web-platform-tests/tools/ci/tests/test_update_pr_preview.py
+++ /dev/null
@@ -1,372 +0,0 @@
-try:
-    from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
-except ImportError:
-    # Python 3 case
-    from http.server import BaseHTTPRequestHandler, HTTPServer
-import json
-import os
-import subprocess
-import tempfile
-import threading
-
-subject = os.path.join(
-    os.path.dirname(os.path.abspath(__file__)), '..', 'update_pr_preview.py'
-)
-test_host = 'localhost'
-
-
-class MockHandler(BaseHTTPRequestHandler, object):
-    def do_all(self):
-        request_body = None
-
-        if 'Content-Length' in self.headers:
-            request_body = self.rfile.read(
-                int(self.headers['Content-Length'])
-            ).decode('utf-8')
-
-            if self.headers.get('Content-Type') == 'application/json':
-                request_body = json.loads(request_body)
-
-        request = (self.command, self.path, request_body)
-
-        self.server.requests.append(request)
-        status_code, body = self.server.responses.get(request[:2], (200, '{}'))
-        self.send_response(status_code)
-        self.end_headers()
-        self.wfile.write(body.encode('utf-8'))
-
-    def do_DELETE(self):
-        return self.do_all()
-
-    def do_GET(self):
-        return self.do_all()
-
-    def do_PATCH(self):
-        return self.do_all()
-
-    def do_POST(self):
-        return self.do_all()
-
-
-class MockServer(HTTPServer, object):
-    '''HTTP server that responds to all requests with status code 200 and body
-    '{}' unless an alternative status code and body are specified for the given
-    method and path in the `responses` parameter.'''
-    def __init__(self, address, responses=None):
-        super(MockServer, self).__init__(address, MockHandler)
-        self.responses = responses or {}
-        self.requests = []
-
-
-def assert_success(returncode):
-    assert returncode == 0
-
-
-def assert_neutral(returncode):
-    assert returncode == 0
-
-
-def assert_fail(returncode):
-    assert returncode not in (0, 78)
-
-
-def run(event_data, responses=None):
-    fd, event_data_file = tempfile.mkstemp(text=True)
-    handle = os.fdopen(fd, 'w')
-    try:
-        json.dump(event_data, handle)
-    finally:
-        handle.close()
-    env = {
-        'GITHUB_EVENT_PATH': event_data_file,
-        'GITHUB_REPOSITORY': 'test-org/test-repo'
-    }
-    env.update(os.environ)
-    server = MockServer((test_host, 0), responses)
-    test_port = server.server_address[1]
-    threading.Thread(target=lambda: server.serve_forever()).start()
-
-    try:
-        child = subprocess.Popen(
-            ['python', subject, 'http://{}:{}'.format(test_host, test_port)],
-            env=env
-        )
-
-        child.communicate()
-    finally:
-        server.shutdown()
-        os.remove(event_data_file)
-
-    return child.returncode, server.requests
-
-def to_key(request):
-    return request[:2]
-
-class Requests(object):
-    read_collaborator = (
-        'GET', '/repos/test-org/test-repo/collaborators/rms', None
-    )
-    create_label = (
-        'POST',
-        '/repos/test-org/test-repo/issues/543/labels',
-        {'labels': ['pull-request-has-preview']}
-    )
-    delete_label = (
-        'DELETE',
-        '/repos/test-org/test-repo/issues/543/labels/pull-request-has-preview',
-        ''
-    )
-    get_ref_open = (
-        'GET', '/repos/test-org/test-repo/git/refs/prs-open/gh-543', None
-    )
-    get_ref_labeled = (
-        'GET',
-        '/repos/test-org/test-repo/git/refs/prs-labeled-for-preview/gh-543',
-        None
-    )
-    create_ref_open = (
-        'POST',
-        '/repos/test-org/test-repo/git/refs',
-        {'ref': 'refs/prs-open/gh-543', 'sha': 'deadbeef'}
-    )
-    create_ref_labeled = (
-        'POST',
-        '/repos/test-org/test-repo/git/refs',
-        {'ref': 'refs/prs-labeled-for-preview/gh-543', 'sha': 'deadbeef'}
-    )
-    delete_ref_open = (
-        'DELETE', '/repos/test-org/test-repo/git/refs/prs-open/gh-543', ''
-    )
-    delete_ref_labeled = (
-        'DELETE',
-        '/repos/test-org/test-repo/git/refs/prs-labeled-for-preview/gh-543', ''
-    )
-    update_ref_open = (
-        'PATCH',
-        '/repos/test-org/test-repo/git/refs/prs-open/gh-543',
-        {'force': True, 'sha': 'deadbeef'}
-    )
-    update_ref_labeled = (
-        'PATCH',
-        '/repos/test-org/test-repo/git/refs/prs-labeled-for-preview/gh-543',
-        {'force': True, 'sha': 'deadbeef'}
-    )
-
-
-def default_data(action):
-    return {
-        'pull_request': {
-            'number': 543,
-            'closed_at': None,
-            'head': {
-                'sha': 'deadbeef'
-            },
-            'user': {
-                'login': 'rms'
-            },
-            'labels': [
-                {'name': 'foo'},
-                {'name': 'bar'}
-            ]
-        },
-        'action': action
-    }
-
-
-def test_close_active_with_label():
-    event_data = default_data('closed')
-    event_data['pull_request']['closed_at'] = '2019-07-05'
-    event_data['pull_request']['labels'].append(
-        {'name': 'pull-request-has-preview'}
-    )
-
-    returncode, requests = run(event_data)
-
-    assert_success(returncode)
-    assert Requests.delete_label in requests
-    assert Requests.delete_ref_open in requests
-    assert Requests.delete_ref_labeled not in requests
-
-
-def test_close_active_with_label_error():
-    event_data = default_data('closed')
-    event_data['pull_request']['closed_at'] = '2019-07-05'
-    event_data['pull_request']['labels'].append(
-        {'name': 'pull-request-has-preview'}
-    )
-    responses = {
-        to_key(Requests.delete_label): (500, '{}')
-    }
-
-    returncode, requests = run(event_data, responses)
-
-    assert_fail(returncode)
-
-
-def test_close_active_without_label():
-    event_data = default_data('closed')
-    event_data['pull_request']['closed_at'] = '2019-07-05'
-
-    returncode, requests = run(event_data)
-
-    assert_success(returncode)
-    assert [Requests.delete_ref_open] == requests
-
-
-def test_open_with_label():
-    event_data = default_data('opened')
-    event_data['pull_request']['labels'].append(
-        {'name': 'pull-request-has-preview'}
-    )
-
-    returncode, requests = run(event_data)
-
-    assert_success(returncode)
-    assert Requests.update_ref_open in requests
-    assert Requests.update_ref_labeled in requests
-
-
-def test_open_without_label_for_collaborator():
-    event_data = default_data('opened')
-    responses = {
-        to_key(Requests.read_collaborator): (204, ''),
-        to_key(Requests.get_ref_open): (404, '{}'),
-        to_key(Requests.get_ref_labeled): (404, '{}'),
-    }
-
-    returncode, requests = run(event_data, responses)
-
-    assert_success(returncode)
-    assert Requests.create_label in requests
-    assert Requests.create_ref_open in requests
-    assert Requests.create_ref_labeled in requests
-
-
-def test_open_without_label_for_non_collaborator():
-    event_data = default_data('opened')
-    responses = {
-        ('GET', '/repos/test-org/test-repo/collaborators/rms'): (404, '{}')
-    }
-
-    returncode, requests = run(event_data, responses)
-
-    assert_neutral(returncode)
-    assert [Requests.read_collaborator] == requests
-
-
-def test_add_unrelated_label():
-    event_data = default_data('labeled')
-    event_data['label'] = {'name': 'foobar'}
-    event_data['pull_request']['labels'].append({'name': 'foobar'})
-
-    returncode, requests = run(event_data)
-
-    assert_neutral(returncode)
-    assert len(requests) == 0
-
-
-def test_add_active_label():
-    event_data = default_data('labeled')
-    event_data['label'] = {'name': 'pull-request-has-preview'}
-    event_data['pull_request']['labels'].append(
-        {'name': 'pull-request-has-preview'}
-    )
-    responses = {
-        to_key(Requests.get_ref_open): (404, '{}'),
-        to_key(Requests.get_ref_labeled): (404, '{}')
-    }
-
-    returncode, requests = run(event_data, responses)
-
-    assert_success(returncode)
-    assert Requests.create_ref_open not in requests
-    assert Requests.create_ref_labeled in requests
-
-
-def test_add_active_label_to_closed():
-    event_data = default_data('labeled')
-    event_data['pull_request']['closed_at'] = '2019-07-05'
-    event_data['label'] = {'name': 'pull-request-has-preview'}
-    event_data['pull_request']['labels'].append(
-        {'name': 'pull-request-has-preview'}
-    )
-    responses = {
-        to_key(Requests.get_ref_open): (404, '{}'),
-        to_key(Requests.get_ref_labeled): (404, '{}')
-    }
-
-    returncode, requests = run(event_data, responses)
-
-    assert_success(returncode)
-    assert Requests.create_ref_open not in requests
-    assert Requests.create_ref_labeled in requests
-
-
-def test_remove_unrelated_label():
-    event_data = default_data('unlabeled')
-    event_data['label'] = {'name': 'foobar'}
-
-    returncode, requests = run(event_data)
-
-    assert_neutral(returncode)
-    assert len(requests) == 0
-
-
-def test_remove_active_label():
-    event_data = default_data('unlabeled')
-    event_data['label'] = {'name': 'pull-request-has-preview'}
-    responses = {
-        to_key(Requests.delete_ref_labeled): (204, '')
-    }
-
-    returncode, requests = run(event_data, responses)
-
-    assert_success(returncode)
-    assert Requests.delete_ref_labeled in requests
-    assert Requests.delete_ref_open not in requests
-
-
-def test_remove_active_label_from_closed():
-    event_data = default_data('unlabeled')
-    event_data['pull_request']['closed_at'] = '2019-07-05'
-    event_data['label'] = {'name': 'pull-request-has-preview'}
-    responses = {
-        to_key(Requests.delete_ref_labeled): (204, '')
-    }
-
-    returncode, requests = run(event_data, responses)
-
-    assert_success(returncode)
-    assert Requests.delete_ref_labeled in requests
-    assert Requests.delete_ref_open not in requests
-
-
-def test_synchronize_without_label():
-    event_data = default_data('synchronize')
-
-    returncode, requests = run(event_data)
-
-    assert_neutral(returncode)
-    assert len(requests) == 0
-
-
-def test_synchronize_with_label():
-    event_data = default_data('synchronize')
-    event_data['pull_request']['labels'].append(
-        {'name': 'pull-request-has-preview'}
-    )
-
-    returncode, requests = run(event_data)
-
-    assert_success(returncode)
-    assert Requests.update_ref_open in requests
-    assert Requests.update_ref_labeled in requests
-
-
-def test_unrecognized_action():
-    event_data = default_data('assigned')
-
-    returncode, requests = run(event_data)
-
-    assert_neutral(returncode)
-    assert len(requests) == 0
diff --git a/tests/wpt/web-platform-tests/tools/ci/update_pr_preview.py b/tests/wpt/web-platform-tests/tools/ci/update_pr_preview.py
deleted file mode 100644
index eca4a30678c..00000000000
--- a/tests/wpt/web-platform-tests/tools/ci/update_pr_preview.py
+++ /dev/null
@@ -1,255 +0,0 @@
-# wpt-submissions.live is a public deployment of WPT, maintained in an external
-# repository. It automatically fetches and deploys all refs in the WPT
-# repository which match a certain pattern. This behavior is intended to be
-# used for pull requests so that reviewers can preview changes without running
-# the WPT server locally.
-#
-# This script facilitates the service by maintaining the git refs. It creates
-# and updates refs in response to GitHub events. It does this automatically for
-# pull requests from GitHub users who have "collaborator" access permissions to
-# the WPT repository. It also does this for any pull requests which bear the
-# `pull-request-has-preview` label. Collaborators can add or remove this label
-# to enable or disable the preview for submissions from non-collaborators.
-#
-# Although the script relies on a secret access token, it is *not* limited to
-# use for pull requests from trusted collaborators due to the way GitHub
-# Actions are executed:
-#
-# > # Pull request events for forked repositories
-# >
-# > [...]
-# >
-# > ## Pull request with base and head branches in different repositories
-# >
-# > The base repository receives a `pull_request` event where the SHA is the
-# > latest commit of base branch and ref is the base branch.
-#
-# https://developer.github.com/actions/managing-workflows/workflow-configuration-options/#pull-request-events-for-forked-repositories
-import json
-import logging
-import os
-import sys
-
-import requests
-
-active_label = 'pull-request-has-preview'
-
-logging.basicConfig(level=logging.INFO)
-logger = logging.getLogger(__name__)
-
-
-class Status(object):
-    SUCCESS = 0
-    FAIL = 1
-    NEUTRAL = 0
-
-
-def request(url, method_name, data=None, json_data=None, ignore_body=False):
-    github_token = os.environ.get('GITHUB_TOKEN')
-
-    kwargs = {
-        'headers': {
-            'Authorization': 'token {}'.format(github_token),
-            'Accept': 'application/vnd.github.machine-man-preview+json'
-        }
-    }
-    method = getattr(requests, method_name)
-
-    logger.info('Issuing request: {} {}'.format(method_name.upper(), url))
-    if json_data is not None or data is not None:
-        kwargs['json'] = json_data
-        kwargs['data'] = data
-
-    resp = method(url, **kwargs)
-
-    resp.raise_for_status()
-
-    if not ignore_body:
-        return resp.json()
-
-
-def resource_exists(url):
-    try:
-        request(url, 'get', ignore_body=True)
-    except requests.HTTPError as exception:
-        if exception.response.status_code == 404:
-            return False
-        raise
-
-    return True
-
-
-class GitHub(object):
-    def __init__(self, api_root, owner, repo):
-        self.api_root = api_root
-        self.owner = owner
-        self.repo = repo
-
-    def is_collaborator(self, login):
-        return resource_exists(
-            '{}/repos/{}/{}/collaborators/{}'.format(
-                self.api_root, self.owner, self.repo, login
-            )
-        )
-
-    def ref_exists(self, ref):
-        return resource_exists(
-            '{}/repos/{}/{}/git/refs/{}'.format(
-                self.api_root, self.owner, self.repo, ref
-            )
-        )
-
-    def create_ref(self, ref, sha):
-        data = {
-            'ref': 'refs/{}'.format(ref),
-            'sha': sha
-        }
-        url = '{}/repos/{}/{}/git/refs'.format(
-            self.api_root, self.owner, self.repo
-        )
-
-        logger.info('Creating ref "{}" as {}'.format(ref, sha))
-
-        request(url, 'post', json_data=data)
-
-    def update_ref(self, ref, sha):
-        data = {
-            'force': True,
-            'sha': sha
-        }
-        url = '{}/repos/{}/{}/git/refs/{}'.format(
-            self.api_root, self.owner, self.repo, ref
-        )
-
-        logger.info('Updating ref "{}" as {}'.format(ref, sha))
-
-        request(url, 'patch', json_data=data)
-
-    def delete_ref(self, ref):
-        url = '{}/repos/{}/{}/git/refs/{}'.format(
-            self.api_root, self.owner, self.repo, ref
-        )
-
-        logger.info('Deleting ref "{}"'.format(ref))
-
-        try:
-            request(url, 'delete', ignore_body=True)
-        except requests.HTTPError as exception:
-            if exception.response.status_code != 404:
-                raise
-
-            logger.info(
-                'Attempted to delete non-existent ref: {}'.format(ref)
-            )
-
-    def set_ref(self, ref, sha):
-        if self.ref_exists(ref):
-            self.update_ref(ref, sha)
-        else:
-            self.create_ref(ref, sha)
-
-    def add_label(self, pr_number, label_name):
-        data = {
-            'labels': [label_name]
-        }
-        url = '{}/repos/{}/{}/issues/{}/labels'.format(
-            self.api_root, self.owner, self.repo, pr_number
-        )
-
-        logger.info('Adding label')
-
-        request(url, 'post', json_data=data)
-
-    def remove_label(self, pr_number, label_name):
-        url = '{}/repos/{}/{}/issues/{}/labels/{}'.format(
-            self.api_root, self.owner, self.repo, pr_number, label_name
-        )
-
-        logger.info('Removing label')
-
-        try:
-            request(url, 'delete')
-        except requests.HTTPError as exception:
-            if exception.response.status_code != 404:
-                raise
-
-            logger.info(
-                'Attempted to remove non-existent label: {}'.format(label_name)
-            )
-
-
-def main(api_root):
-    with open(os.environ['GITHUB_EVENT_PATH']) as handle:
-        event = json.load(handle)
-        logger.info(json.dumps(event, indent=2))
-
-    if 'pull_request' not in event:
-        logger.info('Unexpected event data')
-        return Status.FAIL
-
-    owner, repo = os.environ['GITHUB_REPOSITORY'].split('/', 1)
-    github = GitHub(api_root, owner, repo)
-    action = event['action']
-    pr_number = event['pull_request']['number']
-    ref_open = 'prs-open/gh-{}'.format(pr_number)
-    ref_labeled = 'prs-labeled-for-preview/gh-{}'.format(pr_number)
-    sha = event['pull_request']['head']['sha']
-    login = event['pull_request']['user']['login']
-    has_label = any([
-        label['name'] == active_label
-        for label in event['pull_request']['labels']
-    ])
-    target_label = event.get('label', {}).get('name')
-
-    if action == 'closed':
-        if has_label:
-            github.remove_label(pr_number, active_label)
-
-        # Removing a label from a GitHub Action will not trigger another
-        # Workflow, so the corresponding ref must be deleted while processing
-        # the "closed" action.
-        #
-        # > An action can't trigger other workflows. For example, a push,
-        # > deployment, or any task performed within an action with the
-        # > provided `GITHUB_TOKEN` will not trigger a workflow listening on
-        # > push, deploy, or any other supported action triggers.
-        #
-        # https://developer.github.com/actions/managing-workflows/workflow-configuration-options/
-        github.delete_ref(ref_open)
-
-        return Status.SUCCESS
-    elif action in ('opened', 'reopened') and has_label:
-        github.set_ref(ref_open, sha)
-        github.set_ref(ref_labeled, sha)
-    elif action in ('opened', 'reopened') and github.is_collaborator(login):
-        github.add_label(pr_number, active_label)
-
-        # Removing a label from a GitHub Action will not trigger another
-        # Workflow, so the corresponding ref must be created while processing
-        # the "opened" and "reopened" actions.
-        #
-        # > An action can't trigger other workflows. For example, a push,
-        # > deployment, or any task performed within an action with the
-        # > provided `GITHUB_TOKEN` will not trigger a workflow listening on
-        # > push, deploy, or any other supported action triggers.
-        #
-        # https://developer.github.com/actions/managing-workflows/workflow-configuration-options/
-        github.set_ref(ref_open, sha)
-        github.set_ref(ref_labeled, sha)
-    elif action == 'labeled' and target_label == active_label:
-        github.set_ref(ref_labeled, sha)
-    elif action == 'unlabeled' and target_label == active_label:
-        github.delete_ref(ref_labeled)
-    elif action == 'synchronize' and has_label:
-        github.set_ref(ref_open, sha)
-        github.set_ref(ref_labeled, sha)
-    else:
-        return Status.NEUTRAL
-
-    return Status.SUCCESS
-
-
-if __name__ == '__main__':
-    code = main(sys.argv[1])
-    assert isinstance(code, int)
-    sys.exit(code)
diff --git a/tests/wpt/web-platform-tests/tools/docker/Dockerfile.webkitgtk b/tests/wpt/web-platform-tests/tools/docker/Dockerfile.webkitgtk
new file mode 100644
index 00000000000..8d792b36a47
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/docker/Dockerfile.webkitgtk
@@ -0,0 +1,87 @@
+# This image for WebKitGTK tests is based on Debian stable to ensure binary
+# compatibility with ToT/trunk built-products from build.webkit.org bots.
+# See https://github.com/web-platform-tests/wpt/pull/18595#issuecomment-537267080
+FROM debian:10
+
+# No interactive frontend during docker build
+ENV DEBIAN_FRONTEND=noninteractive \
+    DEBCONF_NONINTERACTIVE_SEEN=true
+
+# Install general requirements not in the base image
+RUN apt-get -qqy update \
+  && apt-get -qqy install \
+    bzip2 \
+    ca-certificates \
+    dbus-x11 \
+    earlyoom \
+    fluxbox \
+    gdebi \
+    git \
+    locales \
+    pulseaudio \
+    python \
+    python-pip \
+    python-virtualenv \
+    tzdata \
+    sudo \
+    unzip \
+    wget \
+    xvfb \
+    git-core
+
+# Configure buster-wpt-webkit-updates repository
+RUN apt-key adv --fetch-keys https://webkitgtk.org/debian/apt.key
+RUN printf 'deb [arch=amd64] https://webkitgtk.org/debian buster-wpt-webkit-updates main' \
+    > /etc/apt/sources.list.d/webkitgtk.list
+RUN printf 'Package: *\nPin: origin webkitgtk.org\nPin-Priority: 1999' \
+    > /etc/apt/preferences.d/99webkitgtk
+
+# Update and upgrade
+RUN apt-get update \
+  && apt-get -y upgrade
+
+# Install webkit packages from https://webkitgtk.org/debian
+RUN apt-get install -y -t buster-wpt-webkit-updates webkit2gtk-driver
+
+# Set the timezone
+ENV TZ "UTC"
+RUN echo "${TZ}" > /etc/timezone \
+  && dpkg-reconfigure --frontend noninteractive tzdata
+
+# Set the locale
+RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen \
+  && dpkg-reconfigure --frontend noninteractive locales
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
+RUN useradd test \
+         --shell /bin/bash  \
+         --create-home \
+  && usermod -a -G sudo test \
+  && echo 'ALL ALL = (ALL) NOPASSWD: ALL' >> /etc/sudoers \
+  && echo 'test:secret' | chpasswd
+
+ENV SCREEN_WIDTH 1280
+ENV SCREEN_HEIGHT 1024
+ENV SCREEN_DEPTH 24
+ENV DISPLAY :99.0
+
+USER test
+
+WORKDIR /home/test
+
+# Remove information on how to use sudo on login
+RUN sudo echo ""
+
+RUN mkdir -p /home/test/artifacts
+RUN mkdir -p /home/test/bin
+
+ENV PATH="/home/test/bin:/home/test/.local/bin:${PATH}"
+
+WORKDIR /home/test/
+
+COPY .bashrc /home/test/.bashrc
+
+COPY start.sh /home/test/start.sh
+COPY retry.py /home/test/bin/retry
diff --git a/tests/wpt/web-platform-tests/tools/docker/README.md b/tests/wpt/web-platform-tests/tools/docker/README.md
new file mode 100644
index 00000000000..c444e4a957f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/docker/README.md
@@ -0,0 +1,19 @@
+This docker images is used for testing Chrome, Firefox and running other tasks
+on Taskcluster. When any of the files in this directory change, the images must
+be updated as well. To do this, assuming you have docker installed:
+
+In this directory, run
+```sh
+docker build -t <tag> .
+docker push <tag>
+```
+
+Then update the `image` specified in the project's .taskcluster.yml file.
+
+To update the image used for WebKitGTK:
+```sh
+docker build -f Dockerfile.webkitgtk -t <tag> .
+docker push <tag>
+```
+
+(This image is not yet used in .taskcluster.yml.)
diff --git a/tests/wpt/web-platform-tests/tools/docker/start.sh b/tests/wpt/web-platform-tests/tools/docker/start.sh
index 2e5f69d4071..3427670cc9f 100755
--- a/tests/wpt/web-platform-tests/tools/docker/start.sh
+++ b/tests/wpt/web-platform-tests/tools/docker/start.sh
@@ -1,15 +1,5 @@
 #!/bin/bash
 
-# This script is embedded in the docker image, and so the image must be updated when changes
-# to the script are made. To do this, assuming you have docker installed:
-# In tools/docker/ :
-#   docker build .
-#   docker ps # and look for the id of the image you just built
-#   docker tag <image> <tag>
-#   docker push <tag>
-# Update the `image` specified in the project's .taskcluster.yml file
-
-
 set -ex
 
 REMOTE=${1:-https://github.com/web-platform-tests/wpt}
diff --git a/tests/wpt/web-platform-tests/tools/tox.ini b/tests/wpt/web-platform-tests/tools/tox.ini
index 52e749e4bdc..63fb8ed9832 100644
--- a/tests/wpt/web-platform-tests/tools/tox.ini
+++ b/tests/wpt/web-platform-tests/tools/tox.ini
@@ -8,8 +8,6 @@ deps =
   pytest-cov
   mock
   hypothesis
-  # `requests` is required by `update_pr_preview.py`
-  requests
 
 commands = pytest {posargs}
 
diff --git a/tests/wpt/web-platform-tests/web-animations/interfaces/Document/getAnimations.html b/tests/wpt/web-platform-tests/web-animations/interfaces/Document/getAnimations.html
index f5df980cc05..f6a6c3edd44 100644
--- a/tests/wpt/web-platform-tests/web-animations/interfaces/Document/getAnimations.html
+++ b/tests/wpt/web-platform-tests/web-animations/interfaces/Document/getAnimations.html
@@ -68,11 +68,12 @@ promise_test(async t => {
   const iframe = document.createElement('iframe');
 
   const eventWatcher = new EventWatcher(t, iframe, ['load']);
+  const event_promise = eventWatcher.wait_for('load');
 
   document.body.appendChild(iframe);
   t.add_cleanup(() => { document.body.removeChild(iframe); });
 
-  await eventWatcher.wait_for('load');
+  await event_promise;
 
   const div = createDiv(t, iframe.contentDocument)
   const effect = new KeyframeEffect(div, null, 100 * MS_PER_SEC);
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html
index 8a13155358d..58e757bce07 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-createDataChannel.html
@@ -7,6 +7,10 @@
 <script>
 'use strict';
 
+const stopTracks = (...streams) => {
+  streams.forEach(stream => stream.getTracks().forEach(track => track.stop()));
+};
+
 // Test is based on the following revision:
 // https://rawgit.com/w3c/webrtc-pc/1cc5bfc3ff18741033d804c4a71f7891242fb5b3/webrtc.html
 
@@ -697,6 +701,53 @@ promise_test(async t => {
 }, 'New data channel should be in the connecting state after creation (after connection ' +
   'establishment)');
 
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  t.add_cleanup(() => pc2.close());
+  const stream = await getNoiseStream({audio: true, video: true});
+  t.add_cleanup(() => stopTracks(stream));
+  const audio = stream.getAudioTracks()[0];
+  const video = stream.getVideoTracks()[0];
+  pc1.addTrack(audio, stream);
+  pc1.addTrack(video, stream);
+  await createDataChannelPair(pc1, pc2);
+}, 'addTrack, then createDataChannel, should negotiate properly');
+
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection({bundlePolicy: "max-bundle"});
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  t.add_cleanup(() => pc2.close());
+  const stream = await getNoiseStream({audio: true, video: true});
+  t.add_cleanup(() => stopTracks(stream));
+  const audio = stream.getAudioTracks()[0];
+  const video = stream.getVideoTracks()[0];
+  pc1.addTrack(audio, stream);
+  pc1.addTrack(video, stream);
+  await createDataChannelPair(pc1, pc2);
+}, 'addTrack, then createDataChannel, should negotiate properly when max-bundle is used');
+
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection({bundlePolicy: "max-bundle"});
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  t.add_cleanup(() => pc2.close());
+  const stream = await getNoiseStream({audio: true, video: true});
+  t.add_cleanup(() => stopTracks(stream));
+  const audio = stream.getAudioTracks()[0];
+  const video = stream.getVideoTracks()[0];
+  pc1.addTrack(audio, stream);
+  pc1.addTrack(video, stream);
+  const [dc1, dc2] = await createDataChannelPair(pc1, pc2);
+
+  pc2.getTransceivers()[0].stop();
+  const dc1Closed = new Promise(r => dc1.onclose = r);
+  await doSignalingHandshake(pc1, pc2);
+  await dc1Closed;
+}, 'Stopping the bundle-tag when there is a DataChannel in the bundle should kill the DataChannel');
+
 /*
   Untestable
     6.1.  createDataChannel
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-iceConnectionState.https.html b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-iceConnectionState.https.html
index 8e853e4acbc..9dd364ed327 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-iceConnectionState.https.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-iceConnectionState.https.html
@@ -360,7 +360,14 @@ promise_test(async t => {
   delete pc1.candidateBuffer;
   await listenToIceConnected(pc1);
   await listenToIceConnected(pc2);
-  assert_array_equals(pc1.iceStates, ['new', 'checking', 'connected']);
+  // While we're waiting for pc2, pc1 may or may not have transitioned
+  // to "completed" state, so allow for both cases.
+  if (pc1.iceStates.length == 3) {
+    assert_array_equals(pc1.iceStates, ['new', 'checking', 'connected']);
+  } else {
+    assert_array_equals(pc1.iceStates, ['new', 'checking', 'connected',
+                                        'completed']);
+  }
   assert_array_equals(pc2.iceStates, ['new', 'checking', 'connected']);
 }, 'Responder ICE connection state behaves as expected');
 
diff --git a/tests/wpt/web-platform-tests/websockets/stream-tentative/abort.any.js b/tests/wpt/web-platform-tests/websockets/stream-tentative/abort.any.js
new file mode 100644
index 00000000000..2392188eaff
--- /dev/null
+++ b/tests/wpt/web-platform-tests/websockets/stream-tentative/abort.any.js
@@ -0,0 +1,46 @@
+// META: script=../websocket.sub.js
+// META: script=resources/url-constants.js
+// META: script=/common/utils.js
+// META: global=window,worker
+
+promise_test(async t => {
+  const controller = new AbortController();
+  controller.abort();
+  const key = token();
+  const wsUrl = new URL(
+      `/fetch/api/resources/stash-put.py?key=${key}&value=connected`,
+      location.href);
+  wsUrl.protocol = wsUrl.protocol.replace('http', 'ws');
+  // We intentionally use the port for the HTTP server, not the WebSocket
+  // server, because we don't expect the connection to be performed.
+  const wss = new WebSocketStream(wsUrl, { signal: controller.signal });
+  await promise_rejects(t, 'AbortError', wss.connection,
+                        'connection should reject');
+  await promise_rejects(t, 'AbortError', wss.closed, 'closed should reject');
+  // An incorrect implementation could pass this test due a race condition,
+  // but it is hard to completely eliminate the possibility.
+  const response = await fetch(`/fetch/api/resources/stash-take.py?key=${key}`);
+  assert_equals(await response.text(), 'null', 'response should be null');
+}, 'abort before constructing should prevent connection');
+
+promise_test(async t => {
+  const controller = new AbortController();
+  const wss = new WebSocketStream(`${BASEURL}/handshake_sleep_2`,
+                                  { signal: controller.signal });
+  // Give the connection a chance to start.
+  await new Promise(resolve => t.step_timeout(resolve, 0));
+  controller.abort();
+  await promise_rejects(t, 'AbortError', wss.connection,
+                        'connection should reject');
+  await promise_rejects(t, 'AbortError', wss.closed, 'closed should reject');
+}, 'abort during handshake should work');
+
+promise_test(async t => {
+  const controller = new AbortController();
+  const wss = new WebSocketStream(ECHOURL, { signal: controller.signal });
+  const { readable, writable } = await wss.connection;
+  controller.abort();
+  writable.getWriter().write('connected');
+  const { value } = await readable.getReader().read();
+  assert_equals(value, 'connected', 'value should match');
+}, 'abort after connect should do nothing');
diff --git a/tests/wpt/web-platform-tests/webusb/usbDevice.https.any.js b/tests/wpt/web-platform-tests/webusb/usbDevice.https.any.js
index 03dbe8f4413..b41687079e5 100644
--- a/tests/wpt/web-platform-tests/webusb/usbDevice.https.any.js
+++ b/tests/wpt/web-platform-tests/webusb/usbDevice.https.any.js
@@ -22,6 +22,19 @@ function assertRejectsWithNotConfiguredError(promise) {
       'The device must have a configuration selected.');
 }
 
+function assertRejectsWithNotClaimedError(promise) {
+  return assertRejectsWithError(
+      promise, 'InvalidStateError',
+      'The specified interface has not been claimed.');
+}
+
+function assertRejectsWithEndpointNotFoundError(promise) {
+  return assertRejectsWithError(
+      promise, 'NotFoundError',
+      'The specified endpoint is not part of a claimed and selected ' +
+      'alternate interface.');
+}
+
 function assertRejectsWithDeviceStateChangeInProgressError(promise) {
   return assertRejectsWithError(
     promise, 'InvalidStateError',
@@ -236,20 +249,6 @@ usb_test(() => {
         assertRejectsWithNotConfiguredError(device.claimInterface(0)),
         assertRejectsWithNotConfiguredError(device.releaseInterface(0)),
         assertRejectsWithNotConfiguredError(device.selectAlternateInterface(0, 1)),
-        assertRejectsWithNotConfiguredError(device.controlTransferIn({
-            requestType: 'vendor',
-            recipient: 'device',
-            request: 0x42,
-            value: 0x1234,
-            index: 0x5678
-        }, 7)),
-        assertRejectsWithNotConfiguredError(device.controlTransferOut({
-            requestType: 'vendor',
-            recipient: 'device',
-            request: 0x42,
-            value: 0x1234,
-            index: 0x5678
-        }, new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]))),
         assertRejectsWithNotConfiguredError(device.clearHalt('in', 1)),
         assertRejectsWithNotConfiguredError(device.transferIn(1, 8)),
         assertRejectsWithNotConfiguredError(
@@ -484,6 +483,79 @@ usb_test(async () => {
   await device.close();
 }, 'can issue all types of IN control transfers');
 
+usb_test(async () => {
+  let { device } = await getFakeDevice();
+  let usbRequestTypes = ['standard', 'class', 'vendor'];
+  let usbRecipients = ['device', 'other'];
+  await device.open();
+  await Promise.all(usbRequestTypes.flatMap(requestType => {
+    return usbRecipients.map(async recipient => {
+      let result = await device.controlTransferIn({
+        requestType: requestType,
+        recipient: recipient,
+        request: 0x42,
+        value: 0x1234,
+        index: 0x5678
+      }, 7);
+      assert_true(result instanceof USBInTransferResult);
+      assert_equals(result.status, 'ok');
+      assert_equals(result.data.byteLength, 7);
+      assert_equals(result.data.getUint16(0), 0x07);
+      assert_equals(result.data.getUint8(2), 0x42);
+      assert_equals(result.data.getUint16(3), 0x1234);
+      assert_equals(result.data.getUint16(5), 0x5678);
+    });
+  }));
+  await device.close();
+}, 'device-scope IN control transfers don\'t require configuration');
+
+usb_test(async () => {
+  let { device } = await getFakeDevice();
+  let usbRequestTypes = ['standard', 'class', 'vendor'];
+  let usbRecipients = ['interface', 'endpoint'];
+  await device.open();
+  await Promise.all(usbRequestTypes.flatMap(requestType => {
+    return usbRecipients.map(recipient => {
+      let index = recipient === 'interface' ? 0x5600 : 0x5681;
+      return assertRejectsWithNotConfiguredError(device.controlTransferIn({
+        requestType: requestType,
+        recipient: recipient,
+        request: 0x42,
+        value: 0x1234,
+        index: index
+      }, 7));
+    });
+  }));
+  await device.close();
+}, 'interface-scope IN control transfers require configuration');
+
+usb_test(async () => {
+  let { device } = await getFakeDevice();
+  let usbRequestTypes = ['standard', 'class', 'vendor'];
+  let usbRecipients = ['interface', 'endpoint'];
+  await device.open();
+  await device.selectConfiguration(1);
+  await Promise.all(usbRequestTypes.flatMap(requestType => {
+    return [
+      assertRejectsWithNotClaimedError(device.controlTransferIn({
+        requestType: requestType,
+        recipient: 'interface',
+        request: 0x42,
+        value: 0x1234,
+        index: 0x5600
+      }, 7)),
+      assertRejectsWithNotFoundError(device.controlTransferIn({
+        requestType: requestType,
+        recipient: 'endpoint',
+        request: 0x42,
+        value: 0x1234,
+        index: 0x5681
+      }, 7))
+    ];
+  }));
+  await device.close();
+}, 'interface-scope IN control transfers require claiming the interface');
+
 usb_test(() => {
   return getFakeDevice().then(({ device, fakeDevice }) => {
     return device.open()
@@ -533,6 +605,93 @@ usb_test(async () => {
   await device.close();
 }, 'can issue all types of OUT control transfers');
 
+usb_test(async () => {
+  let { device } = await getFakeDevice();
+  let usbRequestTypes = ['standard', 'class', 'vendor'];
+  let usbRecipients = ['device', 'other'];
+  let dataArray = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
+  let dataTypes = [dataArray, dataArray.buffer];
+  await device.open();
+  await Promise.all(usbRequestTypes.flatMap(requestType => {
+    return usbRecipients.flatMap(recipient => {
+      let transferParams = {
+        requestType: requestType,
+        recipient: recipient,
+        request: 0x42,
+        value: 0x1234,
+        index: 0x5678
+      };
+      return dataTypes.map(async data => {
+        let result = await device.controlTransferOut(transferParams, data);
+        assert_true(result instanceof USBOutTransferResult);
+        assert_equals(result.status, 'ok');
+        assert_equals(result.bytesWritten, 8);
+      }).push((async () => {
+        let result = await device.controlTransferOut(transferParams);
+        assert_true(result instanceof USBOutTransferResult);
+        assert_equals(result.status, 'ok');
+      })());
+    });
+  }));
+  await device.close();
+}, 'device-scope OUT control transfers don\'t require configuration');
+
+usb_test(async () => {
+  let { device } = await getFakeDevice();
+  let usbRequestTypes = ['standard', 'class', 'vendor'];
+  let usbRecipients = ['interface', 'endpoint'];
+  let dataArray = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
+  let dataTypes = [dataArray, dataArray.buffer];
+  await device.open();
+  await Promise.all(usbRequestTypes.flatMap(requestType => {
+    return usbRecipients.flatMap(recipient => {
+      let index = recipient === 'interface' ? 0x5600 : 0x5681;
+      let transferParams = {
+        requestType: requestType,
+        recipient: recipient,
+        request: 0x42,
+        value: 0x1234,
+        index: index
+      };
+      return dataTypes.map(data => {
+        return assertRejectsWithNotConfiguredError(
+            device.controlTransferOut(transferParams, data));
+      }).push(assertRejectsWithNotConfiguredError(
+          device.controlTransferOut(transferParams)));
+    });
+  }));
+  await device.close();
+}, 'interface-scope OUT control transfers require configuration');
+
+usb_test(async () => {
+  let { device } = await getFakeDevice();
+  let usbRequestTypes = ['standard', 'class', 'vendor'];
+  let usbRecipients = ['interface', 'endpoint'];
+  let dataArray = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
+  let dataTypes = [dataArray, dataArray.buffer];
+  await device.open();
+  await device.selectConfiguration(1);
+  await Promise.all(usbRequestTypes.flatMap(requestType => {
+    return usbRecipients.flatMap(recipient => {
+      let index = recipient === 'interface' ? 0x5600 : 0x5681;
+      let assertion = recipient === 'interface'
+          ? assertRejectsWithNotClaimedError
+          : assertRejectsWithEndpointNotFoundError;
+      let transferParams = {
+        requestType: requestType,
+        recipient: recipient,
+        request: 0x42,
+        value: 0x1234,
+        index: index
+      };
+      return dataTypes.map(data => {
+        return assertion(device.controlTransferOut(transferParams, data));
+      }).push(assertion(device.controlTransferOut(transferParams)));
+    });
+  }));
+  await device.close();
+}, 'interface-scope OUT control transfers an interface claim');
+
 usb_test(() => {
   return getFakeDevice().then(({ device, fakeDevice }) => {
     return device.open()
@@ -738,23 +897,17 @@ usb_test(() => {
     let data = new DataView(new ArrayBuffer(1024));
     for (let i = 0; i < 1024; ++i)
       data.setUint8(i, i & 0xff);
-    const notFoundMessage = 'The specified endpoint is not part of a claimed ' +
-                            'and selected alternate interface.';
     const rangeError = 'The specified endpoint number is out of range.';
     return device.open()
       .then(() => device.selectConfiguration(1))
       .then(() => device.claimInterface(0))
       .then(() => Promise.all([
-          assertRejectsWithError(device.transferIn(2, 8),
-                                 'NotFoundError', notFoundMessage), // Unclaimed
-          assertRejectsWithError(device.transferIn(3, 8), 'NotFoundError',
-                                 notFoundMessage), // Non-existent
+          assertRejectsWithEndpointNotFoundError(device.transferIn(2, 8)), // Unclaimed
+          assertRejectsWithEndpointNotFoundError(device.transferIn(3, 8)), // Non-existent
           assertRejectsWithError(
               device.transferIn(16, 8), 'IndexSizeError', rangeError),
-          assertRejectsWithError(device.transferOut(2, data),
-                                 'NotFoundError', notFoundMessage), // Unclaimed
-          assertRejectsWithError(device.transferOut(3, data), 'NotFoundError',
-                                 notFoundMessage), // Non-existent
+          assertRejectsWithEndpointNotFoundError(device.transferOut(2, data)), // Unclaimed
+          assertRejectsWithEndpointNotFoundError(device.transferOut(3, data)), // Non-existent
           assertRejectsWithError(
               device.transferOut(16, data), 'IndexSizeError', rangeError),
       ]));
diff --git a/tests/wpt/web-platform-tests/webxr/getViewerPose_emulatedPosition.https.html b/tests/wpt/web-platform-tests/webxr/getViewerPose_emulatedPosition.https.html
new file mode 100644
index 00000000000..201a9b72208
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/getViewerPose_emulatedPosition.https.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<body>
+  <script src=/resources/testharness.js></script>
+  <script src=/resources/testharnessreport.js></script>
+  <script src="resources/webxr_util.js"></script>
+  <script src="resources/webxr_test_constants.js"></script>
+  <canvas></canvas>
+
+  <script>
+
+    let testName = "XRFrame getViewerPose has emulatedPosition set properly.";
+
+    const poseTransform = {
+        position: [1, 1, 1],
+        orientation: [0.5, 0.5, 0.5, 0.5]
+    };
+
+    let testFunction = function(session, fakeDeviceController, t) {
+      return session.requestReferenceSpace('local')
+        .then((referenceSpace) => new Promise((resolve, reject) => {
+          function CheckPositionNotEmulated(time, vrFrame){
+            t.step(() => {
+              let pose = vrFrame.getViewerPose(referenceSpace);
+              assert_not_equals(pose, null);
+              assert_equals(pose.emulatedPosition, false);
+              fakeDeviceController.setViewerOrigin(poseTransform, true);
+            });
+
+            session.requestAnimationFrame(CheckPositionEmulated);
+          }
+
+          function CheckPositionEmulated(time, vrFrame) {
+            t.step(() => {
+              let pose = vrFrame.getViewerPose(referenceSpace);
+              assert_not_equals(pose, null);
+              assert_equals(pose.emulatedPosition, true);
+            });
+
+            // Finished.
+            resolve();
+          }
+
+          session.requestAnimationFrame(CheckPositionNotEmulated);
+        }));
+    };
+
+    xr_session_promise_test(testName, testFunction,
+      TRACKED_IMMERSIVE_DEVICE, 'immersive-vr');
+
+  </script>
+</body>
diff --git a/tests/wpt/web-platform-tests/webxr/resources/webxr_util.js b/tests/wpt/web-platform-tests/webxr/resources/webxr_util.js
index 935f49a1fc9..85821d4d3d5 100644
--- a/tests/wpt/web-platform-tests/webxr/resources/webxr_util.js
+++ b/tests/wpt/web-platform-tests/webxr/resources/webxr_util.js
@@ -16,6 +16,15 @@ function xr_promise_test(name, func, properties) {
       await loadChromiumResources;
     }
 
+    // Ensure that any devices are disconnected when done. If this were done in
+    // a .then() for the success case, a test that expected failure would
+    // already be marked done at the time that runs and the shutdown would
+    // interfere with the next test.
+    t.add_cleanup(async () => {
+      // Ensure system state is cleaned up.
+      await navigator.xr.test.disconnectAllDevices();
+    });
+
     return func(t);
   }, name, properties);
 }
@@ -44,19 +53,16 @@ function xr_session_promise_test(
   xr_promise_test(
       name,
       (t) => {
-          // Ensure that any pending sessions are ended and devices are
-          // disconnected when done. This needs to use a cleanup function to
-          // ensure proper sequencing. If this were done in a .then() for the
-          // success case, a test that expected failure would already be marked
-          // done at the time that runs, and the shutdown would interfere with
-          // the next test which may have started already.
+          // Ensure that any pending sessions are ended when done. This needs to
+          // use a cleanup function to ensure proper sequencing. If this were
+          // done in a .then() for the success case, a test that expected
+          // failure would already be marked done at the time that runs, and the
+          // shutdown would interfere with the next test which may have started.
           t.add_cleanup(async () => {
-                // If a session was created, end it.
-                if (testSession) {
-                  await testSession.end().catch(() => {});
-                }
-                // Cleanup system state.
-                await navigator.xr.test.disconnectAllDevices();
+            // If a session was created, end it.
+            if (testSession) {
+              await testSession.end().catch(() => {});
+            }
           });
 
           return navigator.xr.test.simulateDeviceConnection(fakeDeviceInit)
diff --git a/tests/wpt/web-platform-tests/webxr/webxr-supported-by-feature-policy.html b/tests/wpt/web-platform-tests/webxr/webxr-supported-by-feature-policy.html
index d1f8252977f..2843849a34a 100644
--- a/tests/wpt/web-platform-tests/webxr/webxr-supported-by-feature-policy.html
+++ b/tests/wpt/web-platform-tests/webxr/webxr-supported-by-feature-policy.html
@@ -5,6 +5,6 @@
 <script src="/resources/testharnessreport.js"></script>
 <script>
 test(() => {
-    assert_in_array('xr', document.featurePolicy.features());
-}, 'document.featurePolicy.features should advertise xr.');
+    assert_in_array('xr-spatial-tracking', document.featurePolicy.features());
+}, 'document.featurePolicy.features should advertise xr-spatial-tracking.');
 </script>
diff --git a/tests/wpt/web-platform-tests/webxr/webxr_feature_policy.https.html b/tests/wpt/web-platform-tests/webxr/webxr_feature_policy.https.html
new file mode 100644
index 00000000000..ea1bf82adb3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/webxr_feature_policy.https.html
@@ -0,0 +1,81 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/webxr_util.js"></script>
+<script src="resources/webxr_test_constants.js"></script>
+<canvas />
+
+<script>
+xr_promise_test(
+"Validate isSessionSupported behavior without xr-spatial-tracking policy",
+(t) => {
+  // Inline should never reject.
+  return navigator.xr.isSessionSupported("inline").then((supported) => {
+    t.step(() => {
+      assert_true(supported,
+        "inline should always be supported, even without feature policy");
+    });
+
+    // It shouldn't matter that there's no device connected, the SecurityError
+    // should reject first.
+    return promise_rejects(t, "SecurityError",
+      navigator.xr.isSessionSupported("immersive-vr"),
+      "Immersive isSessionSupported should reject");
+  });
+});
+
+xr_promise_test(
+"Validate requestSession behavior without xr-spatial-tracking policy",
+(t) => {
+  return navigator.xr.test.simulateDeviceConnection(TRACKED_IMMERSIVE_DEVICE)
+  .then(() => {
+    return new Promise((resolve, reject) => {
+      navigator.xr.test.simulateUserActivation(() => {
+
+        // Technically the first "requestSession" doesn't need either the device
+        // or the activation, but this makes the test code a little cleaner since
+        // the others do, as lacking user activation or a valid backing device
+        // should also cause the session to reject. In order to guarantee that
+        // we're seeing the rejection we want, we eliminate those as possibilities.
+        resolve(Promise.all([
+          navigator.xr.requestSession("inline").then(session => session.end()),
+
+          promise_rejects(t, "NotSupportedError",
+            navigator.xr.requestSession("inline", { requiredFeatures: ["local"] }),
+            "Inline with features should reject without feature policy"),
+
+          promise_rejects(t, "NotSupportedError",
+            navigator.xr.requestSession("immersive-vr"),
+            "Immersive-vr should reject without feature policy")
+          ]));
+      });
+    });
+  });
+});
+
+xr_promise_test(
+"Validate devicechange event behavior without xr-spatial-tracking policy",
+(t) => {
+  navigator.xr.addEventListener("devicechange", () => {
+    t.step(() => { assert_unreached("devicechange should not fire"); });
+  })
+
+  // We need to yield a short time to ensure that any event registration has
+  // propagated, as this can take some time.
+  // Note that device connection is not guaranteed to fire per the spec, if it's
+  // the first connection, but disconnect definitely should.
+  t.step_timeout(() => {
+    navigator.xr.test.simulateDeviceConnection(TRACKED_IMMERSIVE_DEVICE)
+    .then((testDeviceController) => {
+       return testDeviceController.disconnect();
+    });
+  }, 100);
+
+  // Wait an even longer time before finishing the test, so that if the event
+  // were to fire, it would've by now.
+  return new Promise((resolve) => {
+    t.step_timeout(() => { resolve(); }, 2000);
+  });
+
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/webxr/webxr_feature_policy.https.html.headers b/tests/wpt/web-platform-tests/webxr/webxr_feature_policy.https.html.headers
new file mode 100644
index 00000000000..2c758962332
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/webxr_feature_policy.https.html.headers
@@ -0,0 +1 @@
+Feature-Policy: xr-spatial-tracking 'none'
diff --git a/tests/wpt/web-platform-tests/webxr/xrInputSource_emulatedPosition.https.html b/tests/wpt/web-platform-tests/webxr/xrInputSource_emulatedPosition.https.html
new file mode 100644
index 00000000000..7b0fda45087
--- /dev/null
+++ b/tests/wpt/web-platform-tests/webxr/xrInputSource_emulatedPosition.https.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/webxr_util.js"></script>
+<script src="resources/webxr_test_constants.js"></script>
+<script src="resources/webxr_test_asserts.js"></script>
+<canvas id="webgl-canvas"></canvas>
+
+<script>
+
+let testName = "Poses from XRInputSource.gripSpace have emulatedPosition set "
+  + "properly";
+
+let fakeDeviceInitParams = TRACKED_IMMERSIVE_DEVICE;
+
+let testFunction =
+  (session, fakeDeviceController, t) => new Promise((resolve) => {
+    let input_source = fakeDeviceController.simulateInputSourceConnection({
+      handedness: "right",
+      targetRayMode: "tracked-pointer",
+      pointerOrigin: IDENTITY_TRANSFORM,
+      gripOrigin: VALID_GRIP_TRANSFORM,
+      profiles: []
+    });
+
+    // Must have a reference space to get input poses. eye-level doesn't apply
+    // any transforms to the given matrix.
+    session.requestReferenceSpace('local').then( (referenceSpace) => {
+
+      function CheckPositionNotEmulated(time, xrFrame) {
+        let source = session.inputSources[0];
+        let grip_pose = xrFrame.getPose(source.gripSpace, referenceSpace);
+
+        t.step(() => {
+          assert_not_equals(grip_pose, null);
+          assert_equals(grip_pose.emulatedPosition, false);
+        });
+
+        input_source.setGripOrigin(VALID_GRIP_TRANSFORM, true);
+        session.requestAnimationFrame(CheckPositionEmulated);
+      }
+
+      function CheckPositionEmulated(time, xrFrame) {
+        let source = session.inputSources[0];
+        let grip_pose = xrFrame.getPose(source.gripSpace, referenceSpace);
+
+        t.step(() => {
+          assert_not_equals(grip_pose, null);
+          assert_equals(grip_pose.emulatedPosition, true);
+        });
+
+        resolve();
+      }
+
+      // Can only request input poses in an xr frame.
+      session.requestAnimationFrame(CheckPositionNotEmulated);
+    });
+  });
+
+xr_session_promise_test(
+  testName, testFunction, fakeDeviceInitParams, 'immersive-vr');
+
+</script>
author	bors-servo <lbergstrom+bors@mozilla.com>	2019-10-04 01:26:34 -0400
committer	GitHub <noreply@github.com>	2019-10-04 01:26:34 -0400
commit	1ab4dd135121291d838b0b764617f7aaa865cb90 (patch)
tree	a0cd579b111f1bb7e35d4dee7804e35cdf6bd85c
parent	bbc94d256c65402afd435c17a3f6c6aaf021342f (diff)
parent	555167ffdb0067e0b2491a255e0ea7d61f0ad7a8 (diff)
download	servo-1ab4dd135121291d838b0b764617f7aaa865cb90.tar.gz servo-1ab4dd135121291d838b0b764617f7aaa865cb90.zip