chromium/src/third_party/blink/web_tests/fast/frames/resources/location-change-frame-1.html

<p>The frame on the right should <i>not</i> say 'hello world'.</p>
<script>
if (window.testRunner) {
  testRunner.dumpAsText();
  testRunner.waitUntilDone();
}
parent.frames[1].location='location-change-frame-2.html'
</script>