Debugging Firebase Cloud Messaging is one of the most common Firebase-on-iOS questions I see on StackOverflow. And so in an effort to garner as many StackOverflow points as I can (oh, yeah, and to educate the developer community), I thought it might be helpful to write up a full debugging guide on what to do when you can’t seem to get Firebase Cloud Messaging (FCM) working on your iOS device. Firs
![Debugging Firebase Cloud Messaging on iOS](https://cdn-ak-scissors.b.st-hatena.com/image/square/190df45ec2a39064764c62ac5c00830d5a59979c/height=288;version=1;width=512/https%3A%2F%2Ffirebase.blog%2Fimg%2Fog.png)