White page for AngularJS app in ShinyProxy

Hi, I am trying to deploy an AngularJS app on ShinyProxy, the docker container starts well, but I got a white page for the app. Maybe I need some advanced configuration in shinyproxy to properly deploy this kind of app, but I have no idea how to move forward. Could someone help me with some advice on this? Thank you!

Probably a port mapping issue but that’s just a wild guess because I don’t have access to your set up and code.