2 files changed, 7 insertions, 1 deletions
diff --git a/components/script/dom/webidls/Element.webidl b/components/script/dom/webidls/Element.webidl
index 99d17117221..1a99d5ec480 100644
--- a/components/script/dom/webidls/Element.webidl
+++ b/components/script/dom/webidls/Element.webidl
@@ -91,7 +91,7 @@ dictionary ShadowRootInit {
   required ShadowRootMode mode;
   // boolean delegatesFocus = false;
   // SlotAssignmentMode slotAssignment = "named";
-  // boolean clonable = false;
+  boolean clonable = false;
   // boolean serializable = false;
 };
 
diff --git a/components/script/dom/webidls/ShadowRoot.webidl b/components/script/dom/webidls/ShadowRoot.webidl
index a1ecdc5c10f..40301f48517 100644
--- a/components/script/dom/webidls/ShadowRoot.webidl
+++ b/components/script/dom/webidls/ShadowRoot.webidl
@@ -9,9 +9,15 @@
 [Exposed=Window]
 interface ShadowRoot : DocumentFragment {
   readonly attribute ShadowRootMode mode;
+  // readonly attribute boolean delegatesFocus;
+  // readonly attribute SlotAssignmentMode slotAssignment;
+  readonly attribute boolean clonable;
+  // readonly attribute boolean serializable;
   readonly attribute Element host;
+  // attribute EventHandler onslotchange;
 };
 
+
 enum ShadowRootMode { "open", "closed"};
 // enum SlotAssignmentMode { "manual", "named" };