<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <head> <title>Testcase</title> <style type="text/css"> html{ overflow:scroll; } </style> </head> <body onload="var sheet = document.styleSheets[0]; sheet.disabled = true; sheet.disabled = false;"> Load this page to crash </body> </html>