I tried to relocate the direction on nostr.fractalized.net/myrelay to the mypage container thinking it will get the nostr.fractalized.net URL and use it for the wss:// but I've blank page instead. It's looking for https://nostr.fractalized.net and the nostre relay keep the lead.
Discussion
The primary reason it was made was to replace the ugly pages at relay canonicals. It's quite simple, but with nginx it's less simple (way easier with caddy). See this gist for the general idea:
https://gist.github.com/dskvr/4ea1937bd5c2161249146bc1edd2682e
I'll publish some guides on this topic, but need to get out a few more versions first.