Index: source
===================================================================
--- source	(revision 7029)
+++ source	(working copy)
@@ -94987,7 +94987,7 @@
 
   <pre class="idl">[Constructor(DOMString type, optional <span>StorageEventInit</span> eventInitDict)]
 interface <dfn>StorageEvent</dfn> : <span>Event</span> {
-  readonly attribute DOMString <span title="dom-StorageEvent-key">key</span>;
+  readonly attribute DOMString? <span title="dom-StorageEvent-key">key</span>;
   readonly attribute DOMString? <span title="dom-StorageEvent-oldValue">oldValue</span>;
   readonly attribute DOMString? <span title="dom-StorageEvent-newValue">newValue</span>;
   readonly attribute DOMString <span title="dom-StorageEvent-url">url</span>;
@@ -94995,7 +94995,7 @@
 };
 
 dictionary <dfn>StorageEventInit</dfn> : <span>EventInit</span> {
-  DOMString key;
+  DOMString? key;
   DOMString? oldValue;
   DOMString? newValue;
   DOMString url;