chromium/third_party/blink/web_tests/fast/overflow/overflow_hidden.html

<!DOCTYPE HTML>
<html  style="overflow: hidden">
<script>
function check () {
 var mylink = document.getElementsByTagName('a');
 location =  mylink[0];
}
</script>

<body onload="check()">
<p>Scrolling should occur even when the frame's overflow is hidden (i.e. it has no visible scrollbars).</p>
<div style="height: 2000px">
<a href="#top">Click here</a> </div>
<h2 id="top">Test Passed</h2>
<p>The test should have automatically scrolled down to show "Test Passed" above.</p>
</body>

</html>