Ruby on Rails not connecting to cable, wss

Hi there!

I deployed a Ruby on Rails app yesterday and the app cannot connect to the websocket, wss://my-domain.com.

Ruby version: 3.0.2
Rails version: 6.1.4

Here is a screen shot:

I have looked at the following discussions:

Hi @rcassity,

I am happy to take a look at that for you, what server is having an issue? Also, I did some digging around about that error and it is possibly isolated to Firefox. Are you able to repeat that behavior on another browser?