<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>postMessage closed page</title>
  <script type="application/javascript">
function receiveMessage(evt)
{
  evt.source.postMessage("FAIL", "*");
}

window.addEventListener("message", receiveMessage, false);

function setup()
{
  var query = location.search.substring(1);

  if (query == "opener")
    window.opener.postMessage("message", "http://mochi.test:8888");
}

window.addEventListener("load", setup, false);
  </script>
</head>
<body>
</body>
</html>