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chromium/chrome/test/data/webapps_integration/site_no_service_worker/basic.html 

<!DOCTYPE html>
<html>
<!--Test page for a web site with manifest but without service worker. -->
<head>
  <title>Site No Service Worker</title>
  <link rel="icon" href="basic-48.png">
  <script src="/webapps_integration/test_utils.js"></script>
  <script>
    // If a "manifest=/path/to/manifest.json" query argument is provided to
    // the URL accessing this page, that path is injected as the manifest tag.
    addManifestLinkTag("manifest_no_service_worker.json");
  </script>
</head>
  <h1>Site No Service Worker</h1>
</body>
</html>