HELP - how Traefik redirect to principal doman

Hello to everyone!
I need your help for my traefik configuration.
I install wso2 api manager on docker and configure it (with portainer) to connect to traefik with labels.
The configurations are ok, i reach the wso2 dev portal (https://MYDOMAIN/devportal) but when i try to log in into console, wso2 redirect the page to https://localhost:9443/devportal/….
How can manage this situation?

Your service is probably redirecting to that address, check your browser developer tools network tab.

Wordpress for example saves its own URL, you need to re-configure it when you change its address later on. So I recommend to check the settings of your service.