chromium/tools/perf/contrib/shared_storage/setup_worklet_and_db.html

<!DOCTYPE html>
<html>
<head>
  <title>Shared Storage Test</title>
  <script>
    const url = new URL(location.href);
    const size = url.searchParams.get('size', 0);

    window.sharedStorage.worklet.addModule('worklet.js');
    window.sharedStorage.clear();
    for (let i = 0; i < size; i++) {
      sharedStorage.set(i.toString(), 'x');
    }
  </script>
</head>
<body>
</body>
</html>