<script> var w; function clear() { // Id doesn't matter, the crash happens while trying to access the NULL Document to lookup the Id. w.clearTimeout(153); } function test() { w = window.open("data:text/html,"+ "<script>" + "function navigate() { location.href='data:text/html,<body>Close this page and wait.</body>'};" + "setTimeout(navigate,0);</" + "script>"); setInterval(clear, 20); } </script> <body><p>This test reproduces the crash that happens when JavaScript has access to DOMWindow which is disconnected from its Frame. This crash was fixed by http://trac.webkit.org/changeset/49786</p> To reproduce the crash: <ul><li>Click the link below, the popup window opens.</li><li>Close the popup window.</li><li>Wait about 10 seconds (~10, page cache should start deleting pages) and observe the crash.</li></ul> Crashes on Safari 4.0.3</p><p><a href="javascript:test()">Crash me!</a></p> </body>