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Test Info:

<!DOCTYPE html>
<html class="reftest-wait">
<head>
<script>
function boom()
{
var input = document.createElement("input");
document.body.appendChild(input);
input.focus();
document.body.appendChild(input);
input.focus();
document.documentElement.removeAttribute("class");
}
</script>
</head>
<body onload="setTimeout(boom, 0);"></body>
</html>