<!DOCTYPE html>
<html>
<head>
<script>
  // First send an origin-restricted message, and then send a non-restricted
  // message to end the test promptly even in a failure mode.
  parent.postMessage('targeted', 'http://mochi.test:8888');
  setTimeout(function() { parent.postMessage('broadcast', '*'); }, 0);
</script>
</head>
<body>
</body>
</html>