_oauth/logout doesn't clear cookie

[monehsieh]

Hi,

I'm encountering an issue with logging out from traefik-forward-auth.

I have it configured as follows:

COOKIE_DOMAINS=home.example.com 
AUTH_HOST=oauth.home.example.com

The oauth.home.example.com is pointed to traefik-forward-auth's router.

I have entrypoints set to use

entryPoints:
  websecure:
    address: :443
    http:
      middlewares: 
        - forwardAuth@file

forwardAuth@file is defined as follows

http:
    forwardAuth:
      forwardauth:
        address: http://traefik-forward-auth:4181
        trustForwardHeader: true
        authResponseHeaders: 
          = "X-Forwarded-User"

I can successfully Single Sign-On (SSO) with Google on the whoami service, but I am unable to log out.

After logging out from Google, I can't clear the _forward_auth cookie from the browser using the paths whoami.home.example.com/_oauth/logout nor oauth.home.example.com/_oauth/logout.

I also even tried home.example.com/_oauth/logout which points to a homepage docker container and is configured with - "traefik.http.routers.homepage.middlewares=forwardAuth@file". It doesn't remove the cookie either.

Can anyone provide guidance on how to properly log out and remove the _forward_auth cookie from the browser? Any help would be greatly appreciated!

Thanks in advance,
Mone