title: PWA: safari web push notifications
body: <p>Does Safari 12.1 support service workers PWA push notifications?
  I tried this <a href="https://serviceworke.rs/push-payload_demo.html" rel="nofollow noreferrer">demo</a> on iOS but it still does not work for me.</p>
  <p>Is there any chance to get them?
  Thanks.</p>