nginx.conf

user                    www;
worker_processes        auto;

error_log               /var/log/nginx/error.log warn;

events {
    worker_connections 1024;
}

http {
    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;
    sendfile            on;
    access_log          /var/log/nginx/access.log;
    keepalive_timeout   3000;

    server {
        listen 443 ssl;
        server_name localhost;
        ssl_certificate /config/certs/test.crt;
        ssl_certificate_key /config/certs/test.key;

        location / {
            root /home/node/dist;
        }

        location /demo {
            proxy_pass http://192.168.188.20:64737;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }
    }
    
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
}