file_bug590870.html

Enable keyboard shortcuts

<html>

  <head>

    <script>

onload = function() {

  var x = null;

  try {

    x = document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "spacer");

  } catch(ex) {}

  window.parent.postMessage(x == null, "http://mochi.test:8888");

    </script>

  </head>

  <body>

    Here be dragons!

  </body>

</html>