frame_detached_after_submit_iframe_form.html

<html>
  <body>
    <form method="POST" action="frame_detached_after_submit_iframe_done.html" id="testform">
      <input type="password" id="password_field" name="password_field" autocomplete="new-password">
      <input type="password" id="confirm_password_field" name="confirm_password_field" autocomplete="new-password">
      <button id="input_submit_button" name="input_submit_button">Submit</button>
    </form>
  </body>
</html>

chromium/chrome/test/data/password/frame_detached_after_submit_iframe_form.html