Any nip-05 masters out there ? Why would a custom domain one work on some clients but not show for eg on snort iris ? everything seems the same in settings.
Discussion
It’s almost always CORs. You basically need to add “Access-Control-Allow-Origin: *” to the headers.
https://github.com/nostr-protocol/nips/blob/master/05.md#allowing-access-from-javascript-apps