<!DOCTYPE HTML>
<html>
<head>
  <title>Test UDPSocket BFCache</title>
</head>
<body>
<script type="application/javascript">
'use strict';
window.addEventListener('load', function() {
  let remotePort = parseInt(window.location.search.substring(1), 10);
  let socket = new UDPSocket();
  socket.addEventListener('message', function () {
    socket.send('fail', '127.0.0.1', remotePort);
  });

  socket.opened.then(function() {
    socket.send('ready', '127.0.0.1', remotePort);
  });
}, {once: true});
</script>
</body>
</html>
