原理大概如上，我想通过nginx转发websocket实现node的远程调试，但是发现遇到了一点坑爹的问题 首先remote2很简单的起了一个node服务，很简单的hello world那种，用pm2 配置 fork 模式启动，实例为1。之后remote2本地验证启动OK 然后配置remote 1的nginx转发如下

user nginx;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
    upstream websocket {
        server <remote2 IP>:9229;
    }
    server {
        listen 9229;
        location / {
            proxy_pass http://<remote2 IP>:9229;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade; 
            proxy_set_header Host $host;
            proxy_set_header Origin "";
        }
    }
}

但是当我验证的时候发现Chrome Devtools可以搜索到这个Node服务，但是source面板却是空的，求指教