Well, technically, it’s not a bug itself, cuz you’re still able to upload files to yourdomain.com/filename, the only thing - that file will be under redirect. And it’s okay for many cases, but not for service workers.

I chatted with support on this matter. The only thing they can suggest for now - downgrade to v.5. Obviously, staying forever on the outdated version of Bubble doesn’t sound like an elegant solution for me.

And yeah, they are " hoping to improve this function in the future."
But you know how it works if only two users are complaining (myself and @AliFarahat ), they can put it on the back-burner, and we’ll wait for fixes for a very long time.
That’s why I’m looking for a solution to force sw.js register and install from external sources.