<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>title</title>
  </head>
  <body onload="notifyOpener();">
    <script type="application/javascript">
    function notifyOpener() {
      opener.postMessage("navigation-done", "*");
    }
    </script>
  </body>
</html>
