|  | <!doctype html> | 
|  | <title>WebSockets: navigating nested browsing context with closed websocket</title> | 
|  | <meta name=timeout content=long> | 
|  | <script src=/resources/testharness.js></script> | 
|  | <script src=/resources/testharnessreport.js></script> | 
|  | <script src=/common/utils.js></script> | 
|  | <div id=log></div> | 
|  | <script> | 
|  | var uuid; | 
|  | var t = async_test(null, {timeout:15000}) | 
|  | t.step(function() {uuid = token()}); | 
|  | var navigate = t.step_func(function() { | 
|  | document.getElementsByTagName("iframe")[0].src = 'data:text/html,<body onload="history.back()">'; | 
|  | }); | 
|  | </script> | 
|  | <iframe src=002-1.html></iframe> |