Setting up Reverb in Azure Web App

Hello, I am trying to setup a Reverb server on an Azure Web App Server. Since only port 80 and 443 is allowed on an Azure Web app, I cannot start my reverb host on other ports.

My Laravel is running on locally 8080 in nginx. On the frontend I am using Echo.js

How should I configure Reverb so that my frontend can subscribe to the socket? Should I setup a WebSocket Proxy in my nginx, or use a sub-domain for my reverb server?