chrome notification bug reproduction

gistfile1.txt

<p> Note:  You need to open via an http server for notifications to work. </p>

<input id='the-input'>
<div id='timer'>timer</div>

<script type="text/javascript">
  start_time = new Date()
  setInterval(function() {
    document.getElementById('timer').textContent = Math.floor(
      (new Date() - start_time) / 1000)
  }, 1000)

  if (!("Notification" in window))
    console.log("This browser does not support desktop notification")

  if (Notification.permission !== 'granted')
    Notification.requestPermission(function (permission) {
      console.log('permission:', permission)
      Notification.permission = permission;
    });

  function show_notification() {
    if (Notification.permission === "granted") {
      this.notification && this.notification.close()
      this.notification = new Notification("Hi there!");
      this.notification.onclick = function(x) {
        window.focus();
        document.getElementById('the-input').focus()
        // this.cancel();
        this.close();
      };
      setTimeout(show_notification, 10000)
    }
  }

  setTimeout(show_notification, 10000)
</script>