third_party/WebKit/LayoutTests/fast/workers/resources/throw-on-message-worker.js

   1 self.onerror = function(evt) {
   2     postMessage('error');
   3     return true;
   4 }
   5
   6 self.onmessage = function(evt) {
   7     if (evt.data === "first")
   8         throw Error();
   9     else
  10         postMessage(evt.data);
  11 }