diff --git a/dom/broadcastchannel/BroadcastChannel.h b/dom/broadcastchannel/BroadcastChannel.h
index 2cd0b82124c7..a2c04f015e01 100644
--- a/dom/broadcastchannel/BroadcastChannel.h
+++ b/dom/broadcastchannel/BroadcastChannel.h
@@ -68,7 +68,6 @@ public:
   void Close();
 
   IMPL_EVENT_HANDLER(message)
-  IMPL_EVENT_HANDLER(messageerror)
 
   void Shutdown();
 
diff --git a/dom/broadcastchannel/BroadcastChannelChild.cpp b/dom/broadcastchannel/BroadcastChannelChild.cpp
index 4278e194a5b5..0eba84ea65fa 100644
--- a/dom/broadcastchannel/BroadcastChannelChild.cpp
+++ b/dom/broadcastchannel/BroadcastChannelChild.cpp
@@ -80,10 +80,10 @@ BroadcastChannelChild::RecvNotify(const ClonedMessageData& aData)
   JSContext* cx = jsapi.cx();
   JS::Rooted<JS::Value> value(cx, JS::NullValue());
   if (cloneData.DataLength()) {
-    IgnoredErrorResult rv;
+    ErrorResult rv;
     cloneData.Read(cx, &value, rv);
     if (NS_WARN_IF(rv.Failed())) {
-      DispatchError();
+      rv.SuppressException();
       return IPC_OK();
     }
   }
@@ -111,21 +111,5 @@ BroadcastChannelChild::ActorDestroy(ActorDestroyReason aWhy)
   mActorDestroyed = true;
 }
 
-void
-BroadcastChannelChild::DispatchError()
-{
-  MessageEventInit init;
-  init.mBubbles = false;
-  init.mCancelable = false;
-  init.mOrigin = mOrigin;
-
-  RefPtr<Event> event =
-    MessageEvent::Constructor(mBC, NS_LITERAL_STRING("messageerror"), init);
-  event->SetTrusted(true);
-
-  bool dummy;
-  mBC->DispatchEvent(event, &dummy);
-}
-
 } // namespace dom
 } // namespace mozilla
diff --git a/dom/broadcastchannel/BroadcastChannelChild.h b/dom/broadcastchannel/BroadcastChannelChild.h
index 8fd6eb2e0b55..a85012365a87 100644
--- a/dom/broadcastchannel/BroadcastChannelChild.h
+++ b/dom/broadcastchannel/BroadcastChannelChild.h
@@ -44,8 +44,6 @@ private:
 
   virtual void ActorDestroy(ActorDestroyReason aWhy) override;
 
-  void DispatchError();
-
   // This raw pointer is actually the parent object.
   // It's set to null when the parent object is deleted.
   BroadcastChannel* mBC;
diff --git a/dom/webidl/BroadcastChannel.webidl b/dom/webidl/BroadcastChannel.webidl
index fb0b639f786a..70be23522f2c 100644
--- a/dom/webidl/BroadcastChannel.webidl
+++ b/dom/webidl/BroadcastChannel.webidl
@@ -4,7 +4,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  *
  * For more information on this interface, please see
- * https://html.spec.whatwg.org/#broadcastchannel
+ * http://www.whatwg.org/specs/web-apps/current-work/multipage/web-messaging.html#broadcasting-to-other-browsing-contexts
  */
 
 [Constructor(DOMString channel),
@@ -17,6 +17,5 @@ interface BroadcastChannel : EventTarget {
 
   void close();
 
-  attribute EventHandler onmessage;
-  attribute EventHandler onmessageerror;
+           attribute EventHandler onmessage;
 };