<!DOCTYPE HTML>
<html class="reftest-wait">
<body>
<div>
<img id="image" class="reftest-no-paint" src="./image_rgrg-256x256-animated.gif"></img>
</div>
<script type="application/javascript">

function doTest() {
  document.body.style.background = "black";
  document.documentElement.removeAttribute("class");
}
document.addEventListener("MozReftestInvalidate", doTest, false);
</script>
</body>
</html>