<html class="reftest-wait"> <body> <iframe src="bug559996-iframe.html#down" style="height: 200px; width: 200px"></iframe> <script> function endTest() { document.documentElement.removeAttribute("class"); } function waitForInactivity() { setTimeout(endTest, 1000); } document.addEventListener("MozReftestInvalidate", waitForInactivity, false); </script> </body> </html>