<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Test for Bug 341604</title>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<script>
function doStuff() {
  var testContext = unescape(location.search.substring(1));
  var bc = new BroadcastChannel("test_iframe_sandbox_navigation");
  bc.postMessage({ok: true, desc: testContext + "top navigation should be allowed by a document sandboxed with 'allow-top-navigation'"});
  bc.close();
  window.close();
}
</script>
<body onLoad="doStuff()">
PASS
</body>
</html>
