chromium/third_party/blink/web_tests/http/tests/misc/policy-delegate-called-twice.html

<html>
<head>
<script>

if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.dumpChildFrames();
    testRunner.waitUntilDone();
}

</script>

<body>
This page has an iframe which will navigate itself.  The policy delegate callbacks will be dumped.  The delegate should only be consulted once.<br>
<iframe src="resources/iframe-policy-1.html"></iframe>
</body>
</html>