<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=677638 --> <head> <meta charset="utf-8"> <title>MessagePort/Channel no self tranferring</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=677638">Mozilla Bug 677638</a> <div id="content"></div> <pre id="test"> </pre> <script type="application/javascript"> var a = new MessageChannel(); var status = false; try { a.port1.postMessage('foobar', [a.port1]); } catch(e) { status =true; } ok(status, "Transfering the same port should throw"); </script> </body> </html>