<!DOCTYPE HTML>
<html>
<head>
</head>

<body>
  This is frame 2: 
  <script>
    "use strict";
    document.write(location.href);
  </script>
  <iframe src="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"></iframe>
</body>
</html>