chromium/third_party/blink/web_tests/fast/dom/clientWidthAfterDocumentIsRemoved.html

<p>This test passes if it doesn't crash!</p>

<iframe id="onlybear" 
        srcdoc="<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.0//EN' 'http://www.w3.org/TR/html4/strict.dtd'><html></html>"
>
</iframe>

<script>
if (window.testRunner)
    testRunner.dumpAsText();

window.onload = function() {
    var iframe = document.getElementById("onlybear");
    var doc = iframe.contentDocument;
    iframe.parentNode.removeChild(iframe);
    doc.documentElement.clientWidth;
    doc.documentElement.clientHeight;
}
</script>