Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/http/tests/misc/resources/iframe-policy-2.html 

<html>
<head>
<script>

function loaded()
{
    if (window.testRunner)
        testRunner.notifyDone();
}

</script>

<body onload="loaded();">
You've reached the second page.  Congratulations.
</body>
</html>