fetch_docs_offline_extension_resource.html

<html>
<head>
    <title>
        Fetches resource from Google Docs Offline extension.
    </title>
</head>
<body></body>
<script>
    fetch('chrome-extension://ghbmnnjooekpmoecnnnilnnbdlolhkhi/page_embed_script.js');
</script>
</html>

chromium/chrome/test/data/fetch_docs_offline_extension_resource.html