Keycloak login suddenly stopped working

[flypenguin]

Hi all, i am using Keycloak for login, and ... well, without changes to keycloak or wiki.js – i get the picture below. the logs don't show anything, the secrets still match, the user/password in keycloak is correct, ... i don't know where to look here :( . any hints?

the redirection from keycloak looks like this (broken into multiple lines for readability):

https://MY.WIKI.THING
/login
/35f65bda-ab01-4324-ae65-3ce557d27ebb
/callback
?state=%2F66tC95PyiAZe%2BgL0kGQv4Qq
&session_state=c6bf08fd-b24d-40dd-97f1-72f28e0ffe1a
&code=<really long code here>

... which looks ok.

as for related topics:

• this seems fixed
• this is already set in keycloak (so not my problem)