       <span id="testIndexedDB"></span>
        </code>
        <script type="text/partytown">
          (function () {
            const elm = document.getElementById('testIndexedDB');
            elm.textContent = !!window.indexedDB;
          })();
        </script>
      </li>

      <li>
        <strong>window.fnNotNative()</strong>
        <code>
          <span id="testFnNotNative"></span>
        </code>
        <script>
          (function () {
            window.fnNotNative = () => {};
          }