Cannot match '/' and

Traefik Traefik v2
1

Hi!
I've been trying to emulate this nginx behavior in Traefik v2.2 without success:
...
location /longpolling {
proxy_pass http://127.0.0.1:8072;
}
location / {
proxy_pass http://127.0.0.1:8069;
}
...

Any idea?
Thanks in advance and best regards