better error message (ampproject#8913)

* better error message * error
spotxchange · May 3, 2017 · 68c86b1 · 68c86b1
1 parent ea211cb
commit 68c86b1
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/extensions/amp-viewer-integration/0.1/messaging.js b/extensions/amp-viewer-integration/0.1/messaging.js
@@ -274,8 +274,10 @@ export class Messaging {
       handler = this.defaultHandler_;
     }
     if (!handler) {
-      throw new Error(
+      const error = new Error(
         'Cannot handle request because handshake is not yet confirmed!');
+      error.args = message.name;
+      throw error;
     }
 
     const promise = handler(message.name, message.data, !!message.rsvp);