<html>
<body>
<iframe id="testframe"></iframe>
<script type="application/javascript">

  // simply passing on the message from the child to parent
  window.addEventListener("message", receiveMessage);
  function receiveMessage(event) {
    window.removeEventListener("message", receiveMessage);
    window.parent.postMessage({result: event.data.result}, '*');
  }

  const NESTED_IFRAME_INCLUSION = `
    <html>
    <body>
      <script type="application/javascript">
      window.addEventListener("message", receiveMessage);
      function receiveMessage(event) {
        window.removeEventListener("message", receiveMessage);
        window.parent.postMessage({result: event.data.result}, '*');
      }
      <\/script>
      <iframe src="http://mochi.test:8888/tests/dom/security/test/general/file_same_site_cookies_iframe.sjs"></iframe>
    </body>
    </html>`;
  
  let NESTED_BLOB_IFRAME_INCLUSION = new Blob([NESTED_IFRAME_INCLUSION], {type:'text/html'});

  // query the testframe and set blob URL
  let testframe = document.getElementById("testframe");
  testframe.src = window.URL.createObjectURL(NESTED_BLOB_IFRAME_INCLUSION);
</script>
</body>
</html>
