1 files changed, 17 insertions, 0 deletions
diff --git a/components/script/dom/webidls/ShadowRoot.webidl b/components/script/dom/webidls/ShadowRoot.webidl
new file mode 100644
index 00000000000..711d4f853bd
--- /dev/null
+++ b/components/script/dom/webidls/ShadowRoot.webidl
@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+/*
+ * The origin of this IDL file is:
+ * https://dom.spec.whatwg.org/#interface-shadowroot
+ */
+
+[Exposed=Window]
+interface ShadowRoot : DocumentFragment {
+  readonly attribute ShadowRootMode mode;
+  readonly attribute Element host;
+};
+
+enum ShadowRootMode { "open", "closed"};
+
+ShadowRoot implements DocumentOrShadowRoot;