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chromium/third_party/blink/web_tests/external/wpt/html/rendering/non-replaced-elements/the-frameset-and-frame-elements/frameset-visibility-hidden.html 

<!DOCTYPE html>
<link rel="author" title="Xianzhu Wang" href="mailto:[email protected]">
<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#frames-and-framesets">
<link rel="match" href="reference/empty-ref.html">
<frameset cols="100%" style="visibility: hidden">
  <frame src="resources/red.html">
</frameset>