I totally agree with you. The title was very clear. I knew we were discussing flutter, I simply overlooked the web portion of it. That is 100% my fault there. Anyways, since you received the successful push from the Sendbird Dashboard tester, it’s important to look at the example using an actual channel.
I don’t see any inherent issues with your implementation or the configuration of the user, channel or application. That being said, I did make one change to a flag on our side. Can you give it another test?