iframe-tried-to-be-navigated-by-its-child.html

<!DOCTYPE html>
<p>If this message appears, then this frame has not been navigated by its child.</p>
<iframe src="iframe-that-tries-to-navigate-parent-and-sends-result-to-grandparent.html">
</iframe>

chromium/third_party/blink/web_tests/external/wpt/html/semantics/embedded-content/the-iframe-element/support/iframe-tried-to-be-navigated-by-its-child.html