chromium/tools/perf/page_sets/dummy_pages/dummy_page.html

<!doctype html>
<!--
Copyright 2015 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<html>
<head>
  <style>
    html, body {
      margin: 0;
      padding: 0;
    }
  </style>
</head>
<body>
  This dummy page is used for testing purpose only. ¯\_(ツ)_/¯
</body>
<script>
  window.__dummy_value = 1;
</script>
</html>