Disable SSO middleware on certain path using docker-compose

Traefik Traefik v2 (latest)
,
1

I have node-red installed protected with Google login; now a certain node-red palette requires a 'callback' url to be accessible; obviously without SSO authentication.

This is my main config:

      - "traefik.http.routers.ha-node-red.rule=Host(`node-red.at.mydomain.info`)"
      - "traefik.http.routers.ha-node-red.entrypoints=websecure"
      - "traefik.http.routers.ha-node-red.tls=true"
      - "traefik.http.routers.ha-node-red.tls.certresolver=leresolver"
      - "traefik.http.routers.ha-node-red.middlewares=sso,secureheaders"
      - "traefik.http.services.ha-node-red.loadbalancer.server.port=1880"

But https://node-red.at.mydomain.info/some/url should be accessible without the 'sso' middleware; the rest remains thesame. How can i do this?

I tried adding this:

      - "traefik.http.routers.ha-node-red-callback.rule=Host(`node-red.at.mydomain.info`) && Path(`/some/url`)"
      - "traefik.http.routers.ha-node-red-callback.entrypoints=websecure"
      - "traefik.http.routers.ha-node-red-callback.tls=true"
      - "traefik.http.routers.ha-node-red-callback.tls.certresolver=leresolver"
      - "traefik.http.routers.ha-node-red-callback.middlewares=secureheaders"
      - "traefik.http.services.ha-node-red-callback.loadbalancer.server.port=1880"

But then my docker image doesn't start anymore. What am i missing?