title: Make PWA start after OS reboot
body: <p>I want my PWA's service worker to run after the user reboot its phone.</p>
  
  <p>The <a href="https://stackoverflow.com/questions/49694633/progressive-web-app-start-at-android-device-boot/49695965">only answer I found</a> on the topic is 1.5 year old, and from what I read the field evolved a lot in that time-frame, so I was wondering if today it was possible yet ?</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>I double-checked and realized it's already doing that. After testing my service worker on my phone the first time, I rebooted the phone, and then notifications weren't coming in anymore. I therefore assumed service workers weren't surviving reboot. But it probably was my phone taking forever to load it, because I tried again and this time it worked ...</p>