Not able to login over reverse proxy

Phoscon App Bug reports
1

I am running deconz in a docker container.

    image: deconzcommunity/deconz:stable
    container_name: deconz
    restart: unless-stopped
    volumes:
      - /datavol/deconz:/opt/deCONZ
    ports:
      - '5901:5900'
      - '8084:80'
      - '444:443'
    devices:
      - /dev/ttyACM0
    environment:
      - DECONZ_WEB_PORT=80
      - DECONZ_VNC_MODE=1
      - DECONZ_VNC_PASSWORD=very_strong_password:)
      - DECONZ_VNC_PORT=5900
      - DECONZ_WS_PORT=443
      - DEBUG_INFO=1
      - DEBUG_APS=0
      - DEBUG_ZCL=0
      - DEBUG_ZDP=0
      - DEBUG_OTAU=0
    labels:
      #	HTTPS traffic
      - "traefik.enable=true"
      - "traefik.http.routers.deconz.rule=Host(`phoscon.${DOMAIN}`)"
      - "traefik.http.routers.deconz.entrypoints=web-secure"
      - "traefik.http.routers.deconz.tls=true"
      - "traefik.http.routers.deconz.tls.certresolver=certificato"
      - "traefik.http.routers.deconz.tls.domains[0].main=*.${DOMAIN}"
      - "traefik.http.routers.deconz.service=deconzService"
      - "traefik.http.services.deconzService.loadBalancer.server.port=80"
      - "traefik.http.routers.deconz.middlewares=chain-oauth@file"

  
networks:
  default:
    name: px-nw
    external: true

I set all my services to be reverse proxied with Traefik. Additionally, I expose some relevant ports on the host interface, in case there is trouble with the reverse proxy.
Things were working as supposed in some versions before the last stable. What I am now experiencing is that I am not able to log in over the reverse reverse proxy.

image

Using the host interface on port 8084 login works.

2

The URL is using login2.html . This does not seem to work with RPs, as there’s apparently some hardcoded port 80 involved. Use login.html instead.

3

Works. Why it defaults to login2.html is an separate question.