cross-iframe-that-performs-top-navigation-in-sandboxed-frame.html

<html>

<body>
  This should create a sandboxed iframe.

  <iframe sandbox="allow-scripts allow-top-navigation" src="https://localhost:8443/security/frameNavigation/resources/failed-top-navigation.html"></iframe>
  The navigation should fail. This text should be visible.
</body>

</html>

chromium/third_party/blink/web_tests/http/tests/security/frameNavigation/resources/cross-iframe-that-performs-top-navigation-in-sandboxed-frame.html