URL of websocket opened by BE?

No worries I completely understand it being private, but I’ll pass.

I only answer questions here for two reasons:

  • To help developers get themselves ‘unstuck’ faster
  • To help developers that stumble upon the thread in future and can use the info to self-solve

I understand why some things are private, I’ve no issue with it myself, but helping with anything private is unfortunately just free consultancy and I have my actual work to do.

I’ve already provided enough pointers for you to keep researching to determine if what you’re trying to do is actually achievable on Netlify.

My guess is that it isn’t, and that you’d need to look in to another way of performing it.
For example using another provider or hosted service for the websocket functionality.