Summary
error message -> the system admin has turned off OAuth2 Service Provider.
Steps to reproduce
reverse proxy config : https://blogs.msdn.microsoft.com/friis/2016/08/25/iis-with-url-rewrite-as-a-reverse-proxy-part-2-dealing-with-500-52-status-codes/
ver : Team Edition 5.12.0
Expected behavior
reverse proxy ?
Observed behavior
public PC -> GitLab web direct connection login OK
public PC -> mattermost gitlab SSO login error
private PC-> no trouble
why error message?? -> the system admin has turned off OAuth2 Service Provider ??
help me ~~