Portainer Login - Your session has expired (only when using public domain)

[michael-delle]

Only when using portainer.domain.ext I get a "Your session has expired" error when I try to login.

If I uncomment the "ports" and use my internal IP to access Portainer, it works.

It works if I comment the basic authentication as well.

  portainer:
    container_name: portainer
    image: portainer/portainer:latest
    restart: unless-stopped
    command: -H unix:///var/run/docker.sock
    networks:
      - t2_proxy
    security_opt:
      - no-new-privileges:true
    #ports:
    #  - "9000:9000"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ${USERDIR}/docker/portainer/data:/data # Change to local directory if you want to save/transfer config locally
    environment:
      - TZ=${TZ}
    labels:
      - "traefik.enable=true"
      ## HTTP Routers
      - "traefik.http.routers.portainer-rtr.entrypoints=https"
      - "traefik.http.routers.portainer-rtr.rule=Host(`portainer.$DOMAINNAME`)"
      - "traefik.http.routers.portainer-rtr.tls=true"
      ## Middlewares
      #- "traefik.http.routers.portainer-rtr.middlewares=chain-no-auth@file" # No Authentication
      - "traefik.http.routers.portainer-rtr.middlewares=chain-basic-auth@file" # Basic Authentication
      #- "traefik.http.routers.portainer-rtr.middlewares=chain-oauth@file" # Google OAuth 2.0
      #- "traefik.http.routers.portainer-rtr.middlewares=chain-authelia@file" # Authelia
      ## HTTP Services
      - "traefik.http.routers.portainer-rtr.service=portainer-svc"
      - "traefik.http.services.portainer-svc.loadbalancer.server.port=9000"

[SimpleHomelab]

have you tried incognito mode in browser? Your yml seems OK to me.