Fiddling around with the nip-05 files on my servers but it just won't work. Doesn't matter which one I try.
Discussion
I had to add a "_config.yml" file to my root containing the text "include: [“.well-known”]" to expose the .well-known directory to searches. Try that if you haven't already.
Nope I did not. Will try later.
Cors test shows it's working via http.
Seems like SSL is misconfigured.