title: Web push notifications in Microsoft Edge on Android not working
body: <p>I am developing a site which is sending web push notifications and have so far tested this successfully with Chrome. I am currently testing in other browsers including Microsoft Edge but I have run into some problems. Any push notification I try to send only gets displayed with the text "This site was updated in the background". To isolate the problem I have managed to reproduce it using one of Googles own examples:</p>
  
  <p><a href="https://developers.google.com/web/fundamentals/codelabs/push-notifications" rel="nofollow noreferrer">https://developers.google.com/web/fundamentals/codelabs/push-notifications</a></p>
  
  <p>Step-by-step:</p>
  
  <ol>
  <li>Setup the example as described in the text (including using the correct public key from the companion site)</li>
  <li>Make the resulting site available to your Android phone, e.g. by using ngrok</li>
  <li>Visit the site on using Edge on your phone, enable  notifications and copy the subscription info.</li>
  <li>Use the subscription info to send a message from the companion site.</li>
  </ol>
  
  <p>Expected Result:
  A notification should appear with the data sent in the companion site.</p>
  
  <p>Actual result:
  If site is in foreground, no notification appears
  If site is in background, a notification appears with the text "This site was updated in the background"</p>
  
  <p>Does anyone know if this is supposed to work on the mobile Edge browser and what could be the problem?</p>