Is there any case where a relay is not using a ws:// or wss:// uri?
In other words, are there other uri schemes that are just proxies to the websocket protocol?
Discussion
I think you can use http(s) as well and have a proxy handling the switch over to websockets. I haven't seen any public relays doing that though...
In my hacky and half built by ChatGPT bridge script it doesn't expressly use ws:// / wss:// and works with or without it depending on the client. Though it's not really a relay, it's just pretending to be one but is actually just a websocket server that accepts the NEvents and yeets them over to other servers using their prospective APIs.
Not sure if that's relevant or not to the question.