chromium/third_party/blink/web_tests/http/tests/security/javascriptURL/xss-DENIED-from-javascript-url-in-foreign-domain-subframe.html

<html>
<body>
    <p>The scenario for this test is that you have an iframe with content from a foreign domain.  In that foreign content
        is an iframe which loads a javascript: URL.  This tests that the javascript: URL loaded iframe does not have access
        to the main frame using top.document.</p>
    <iframe src="http://localhost:8000/security/javascriptURL/resources/foreign-domain-javascript-url-accessor-iframe.html" style="width: 400px; height:200px;"></iframe>
    <p id='accessMe'>Pass: Cross frame access from a javascript: URL on a different domain was denied.</p>
    <script>
        if (window.testRunner) {
            testRunner.dumpAsText();
            testRunner.waitUntilDone();
            testRunner.dumpChildFrames();
        }
    </script>
</body>
</html>