title: Google Firebase Cloud Message incompatible with Microsoft EDGE?
body: <p>I get the FCM sample code on git: <a href="https://github.com/firebase/quickstart-js/tree/master/messaging" rel="nofollow noreferrer">https://github.com/firebase/quickstart-js/tree/master/messaging</a></p>
  
  <p>Tested it on Chrome it worked fine, on MS EDGE don't get the message.</p>
  
  <p>Is there any incompatibility?</p>
  
  <p>Printscreen test on Chrome, EDGE and postman results.</p>
  
  <p><a href="https://i.stack.imgur.com/38x2u.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/38x2u.png" alt="FCM"></a></p>
  
  <p>Postman results, the message_id is empty:</p>
  
  <pre><code>{
      "multicast_id": 9215195938054196561,
      "success": 1,
      "failure": 0,
      "canonical_ids": 0,
      "results": [
          {
              "message_id": ""
          }
      ]
  }
  </code></pre>