title: Ionic 3: cannot receive push notification after restarting the app
body: <p>I am testing by installing the app locally through XCode on my iPhone.</p>
  <p>When I enable the push notification inside the app, everything works fine. But when I exit the app completely and reopen it later, the notification is no longer received. After I disable &amp; enable the notification again, it starts receiving it again.</p>
  <p>The local notification still works on restarting BTW, only the push notification stops working after restarting.</p>
  <p>Do anyone know about this issue and how to fix it? Thanks in advance!</p>