Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/fast/css-generated-content/media-generated-content.html 

<!DOCTYPE html>

<style>
audio:after,
audio:before {
    display: inline;
    content: no-close-quote;
}
video:after,
video:before {
    display: inline;
    content: no-close-quote;
}
</style>

<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>

<audio controls></audio>

<video controls></video>

<p>Should not crash when ::before or ::after is used on media elements</p>