this.setupConnection() is not called for a custom transport

[lauri865]

Bug report

• [x] I confirm this is a bug with Supabase, not with my own application.
• [x] I confirm I have searched the Docs, GitHub Discussions, and Discord.

Describe the bug

Bringing this to the attention, as it will likely disappear in the void otherwise: https://github.com/orgs/supabase/discussions/30361

How can one implement a custom transport when setupConnection is not run against it from the RealtimeClient?

[lauri865]

We have patched realtime-js on our end and added the missing setupConnection line. Everything seems to be working well.

I presume it's just an oversight/bug, because otherwise one would have to reimplement the whole realtmeclient in order to use a custom transport.