<!DOCTYPE html>
<html>
<head>
<title>This tests that hittesting an iframe when frame flattening is on does not crash.</title>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

if (window.internals)
    internals.settings.setFrameFlattening("FullyEnabled")

function runTest() {
    setTimeout(function() {
        document.getElementById('clickonthis').contentDocument.getElementById('foo').style.display = "none";
        if (window.internals)
            internals.nodesFromRect(document, 100, 100, 0, 0, 0, 0, false, false, true);
        if (window.testRunner)
            testRunner.notifyDone();
    }, 0);
}
</script>
<body>
Pass if no crash or assert in debug.
<iframe onload="runTest()" id=clickonthis src="data:text/html,<div id=foo>foobar</div>">
</body>