<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1176034 --> <head> <meta charset="utf-8"> <title>Test for Bug 1176034 - start/close</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=1176034">Mozilla Bug 1176034</a> <div id="content"></div> <pre id="test"> </pre> <script type="application/javascript"> var mc = new MessageChannel(); try { postMessage(42, "*", [ mc.port1, window ]); ok(false, "Something went wrong."); } catch(e) { ok(true, "PostMessage should fail and we should not leak."); } </script> </body> </html>