问题 I want to implement Laravel-WebSocket + pusher substitute (https://github.com/beyondcode/laravel-websockets) with Laravel-echo on an Azure VM with apache2 reverse proxy. However, no matter what I tried, they just can't connect. It's always between error 404, 502 and 500 when a client-side listener tries to connect. This VM only allows entry through 80 and 443. Therefore, I did reverse proxy which redirects '/WebSocket' to http://127.0.0.1:6001 (where the WebSocket runs. TCP) The server is