Update DOM IDL for whatwg/dom#316

ayg · Aug 29, 2016 · 98e395b · 98e395b
1 parent 482fb4b
commit 98e395b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dom/interfaces.html b/dom/interfaces.html
@@ -159,7 +159,7 @@ <h1>DOM IDL tests</h1>
 
 [Constructor(MutationCallback callback)]
 interface MutationObserver {
-  void observe(Node target, MutationObserverInit options);
+  void observe(Node target, optional MutationObserverInit options);
   void disconnect();
   sequence<MutationRecord> takeRecords();
 };