no-focus-ring-iframe.html | Explore in Territory

<!DOCTYPE html>
<style>
  #test { border: 20px solid orange; background-color: blue }
</style>

<iframe id="test" tabIndex="1" src="resources/square-blue-100x100.png"></iframe><br>
Click the orange border, a focus ring should not appear.

<script src="resources/focus-test.js"></script>

chromium/third_party/blink/web_tests/fast/replaced/no-focus-ring-iframe.html