<!DOCTYPE html>
<html>
<head>
<title>This tests that table does not assert when child visual overflow is cleared.</title>
<script>
if (window.testRunner)
    testRunner.dumpAsText();

window.onload = function() {
	window.scrollTo(0, document.scrollingElement.scrollHeight);
	document.designMode = 'on';
}
</script>
<style>
pre {
	margin-top: -1px;
	position: relative;
	display: inline-table;
}

span {
	position: absolute;
}
</style>
</head>
<body>
PASS if no assert in debug.
<table><tr><th><span><div><pre><a>a<pre><span><details></details></span></pre></a></pre></div></span></tr></th></table>
</body>