<?xml version="1.0"?> <html xmlns="http://www.w3.org/1999/xhtml"> <title>Testcase bug 288790 - Crash [@ GetNearestContainingBlock] with this xbl testcase</title> <head> <style> #z {position: relative;} #z span{position: absolute;} </style> <bindings xmlns="http://www.mozilla.org/xbl" xmlns:html="http://www.w3.org/1999/xhtml"> <binding id="m"></binding> <binding id="ma" extends="#m"> <content> <html:div><children/></html:div> </content> </binding> </bindings> </head> <body> <div id="z"><span></span></div> <script> function doe(){ document.getElementById('z').setAttribute('style','-moz-binding:url(#ma)'); setTimeout(doe2,0); } function doe2(){ document.getElementsByTagName('span')[0].setAttribute('style','-moz-binding:url(#m)'); } </script> <button id="button" onclick="doe()">Click me</button><br/> Clicking on the above button two times, should not crash Mozilla. <script> function clickbutton() { var ev = document.createEvent('MouseEvents'); ev.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null); var button = document.getElementById('button'); button.dispatchEvent(ev); button.dispatchEvent(ev); } clickbutton(); </script> </body></html>