<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Toplevel data navigation</title>
</head>
<body>
test3: performing data: URI navigation through win.loc.href<br/>
<script>
  // postMessage will not be sent if data: URI is blocked
  window.location.href = "data:text/html,<body><script>" +
        "window.opener.postMessage('test3','*');<\/script>toplevel data: URI " +
        "navigations should be blocked</body>";
</script>
</body>
</html>
