Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/external/wpt/html/browsers/history/the-session-history-of-browsing-contexts/navigation-in-onload_form-submission-iframe.html 

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Navigation in onload handler through form submission in an iframe</title>
  </head>
  <body>
    <iframe id="testFrame" src="navigation-in-onload_form-submission-1.html"></iframe>
  </body>
</html>