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chromium/chrome/test/data/android/url_overriding/navigation_with_fallback_url.html 

<!DOCTYPE html>
<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.

-->
<head>
  <meta name="viewport"
    content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
  <script>
    function openApp() {
      location.href = 'intent://test/#Intent;scheme=badscheme;S.browser_fallback_url=PARAM_FALLBACK_URL;end';
    };
  </script>
</head>
<body style='height:10000px;' onclick='openApp();'>
  Click page to open App!!
</body>
</html>