chromium/chrome/test/data/extensions/api_test/app_background_page/no_js/bg.html

<!--
Copyright 2012 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<script src="../common/common.js"></script>
<h1 id="status">Background</h1>
<div style="display:none" id="pageToScriptTunnel"></div>
<div style="display:none" id="scriptToPageTunnel"></div>

<script>
window.onload = function() {
  console.log('background page loaded');
  setupScriptTunnel();
  notifyBackgroundPageLoaded();
}
</script>