<html xmlns="http://www.w3.org/1999/xhtml"> <head> <script type="text/javascript"> <![CDATA[ function boom() { var dE = document.documentElement; var newSpan = document.createElementNS("http://www.w3.org/1999/xhtml", "span"); document.addEventListener("DOMNodeRemoved", whee, false); document.removeChild(dE); document.removeEventListener("DOMNodeRemoved", whee, false); function whee() { document.removeEventListener("DOMNodeRemoved", whee, false); document.insertBefore(newSpan, dE); } } window.addEventListener("load", boom, false); ]]> </script> </head> <body> <p>This text will disappear. There should be no assertions.</p> </body> </html>