<!DOCTYPE html> <html class="reftest-wait"> <head> <title>Test dynamically-appended animation on an element that dynamically becomes 'display:none'</title> </head> <body style="background-color: lime;"> <div> <svg> <rect width="100" height="100" fill="brown" id="rect"> </rect> </svg> </div> <script> document.addEventListener('MozReftestInvalidate', function() { var rect = document.getElementById("rect"); var animate = document.createElementNS('http://www.w3.org/2000/svg', 'animate'); animate.setAttribute('attributeName', 'fill'); animate.setAttribute('from', 'blue'); animate.setAttribute('to', 'red'); animate.setAttribute('dur', '100s'); rect.appendChild(animate); requestAnimationFrame(function(time) { rect.style.display = 'none'; requestAnimationFrame(function(time) { document.documentElement.removeAttribute("class"); }); }); }); </script> </body> </html>