<!DOCTYPE HTML> <html> <head> <title>Bug 1045891</title> </head> <body> <iframe id="innermosttestframe"> </iframe> <script type="text/javascript"> page_id = window.location.hash.substring(1); function recvMessage(ev) { if (ev.data.id == page_id) { window.parent.postMessage({id:ev.data.id, message:'allowed'}, 'http://mochi.test:8888'); window.removeEventListener('message', recvMessage); } } window.addEventListener('message', recvMessage, false); </script> </body> </html>