<!DOCTYPE HTML>
<html>
<head>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.addUserScript("if (window.location == 'about:blank') console.log('SUCCESS');", true, true);
}
</script>
</head>
<body>
This test should log a console message on success.
<iframe src="about:blank"></iframe>
</body>
</html>