a.html | Explore in Territory

<HTML>
<HEAD>
<SCRIPT>
function writeDot()
{
    while(!parent.frames[1].document.URL) { }
}
</SCRIPT>
</HEAD>
<BODY>
This test checks whether document.URL is initially set to an empty
value or "about:blank" for frames. The right answer is
"about:blank". If it is empty, then this test will hang.
<script>
writeDot();
if (window.testRunner)
    testRunner.notifyDone();
</script>
</BODY>
</HTML>

chromium/third_party/blink/web_tests/fast/dom/resources/a.html