Scaling with Redis

I have been trying to slightly modify the code to use my local instance of Redis by providing it with the redis:// argument as the message_queue argument on the following

Flask-SocketIO-Chat/app/__init__.py

Line 16 in 41f2627

socketio.init_app(app)

becomes
socketio.init_app(app, message_queue='redis://').
According to my reading of the documentation, that is all I need for accomplishing what I'm attempting here and it does seem to work to some extent because when I monitor my redis from another terminal (redis-cli monitor), I see the application subscribing to the flask-socketio channel once I fill out the initial form for joining a room. However, after being redirected to the chat room page, socketio attempts to make a connection to the server multiple times but all those requests never seem to return as they show up as pending in my Chrome dev tools. Below is a screenshot of that.

Have I missed something in the configuration step for this?The behavior I'm expecting is to be able to instantiate two servers on different ports and let's say I join room 1 on both from different browser windows, then I should be able to send a message from one window to the other. I have done something similar in NodeJs and it worked fine but I'm having trouble replicating the same behavior here.

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