chromium/chrome/test/data/sync/encryption_keys_retrieval_with_iframe.html

<html>
<head>
<script>
  window.onload = function() {
  if (typeof chrome.setSyncEncryptionKeys != "undefined") {
    console.log("chrome.setSyncEncryptionKeys() should not be available in the mainframe.");
    return;
  }
  setTimeout(function() {
    console.log('Loading iframe with source: ', location.search.substring(1));
      document.getElementById("retrieval").src = location.search.substring(1);
  }, 0);
}
</script>
</head>
<body>
  <iframe src="/title1.html" id="retrieval"></iframe>
</body>
</html>