Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/external/wpt/html/browsers/windows/iframe-cross-origin-print.sub.html 

<!doctype html>
<link rel=match href="iframe-nested-print-ref.html">
<style>
  body { margin: 0 }
</style>
<iframe frameborder=0 scrolling=no src="//{{hosts[alt][www]}}:{{ports[http][0]}}{{location[path]}}/../resources/iframe-nested-cross-origin.html"></iframe>