Traefik 2 fallback default router to Caddy

Question

I'm using Traefik 2.11 and I'd like to forward all unmatched traffic to another reverse proxy (namely Caddy).

First question, is it possible to define a router with no rule ? (which would get a 0 priority) Is it going to sweep all the remaining traffic ?

Second question, will I be able to also delegate the SSL offloading to Caddy since I'm already redirecting the 80.

And lastly:

entryPoints:
  web:
    address: ":80"
    http:
      redirections:
        entryPoint:
          to: "websecure"
          scheme: "https"
  websecure:
    address: ":443"

http:
  routers:
    fallback:
      service: fallback
      entrypoints: web
  services:
    fallback:
      loadBalancer:
        servers:
          - url: "http://caddy-ip"

This doesn't seem to do the job, it's still trying to do the TLS handshake, I guess because it's getting redirected before reaching my fallback router