这个问题是来自超级用户的migrated，因为它可以在Stack Overflow上回答。Migrated上个月。
我有一个Nginx Web服务器运行在我的树莓派。在Web服务器中，我有一个React App，后端有一个节点服务器。当我在本地运行时，一切都很好。但是我在获得虚拟主机配置以便能够利用和访问WebSocket服务器上遇到了困难。我已经尝试了一百万件事，我准备重新利用这个树莓派回到我的3d打印机，如果我不能得到这个弄清楚。
下面是应该与此问题相关的代码。
在前端：

import useWebSocket, { ReadyState } from 'react-use-websocket';

const WS_URL = wss://localhost:3000/ws;我也试过ws://localhost:3000。
NODE服务器代码：

const { WebSocket, WebSocketServer } = require('ws');
const http = require('http');
require('dotenv').config();
// Spinning the http server, the WebSocket server, and initiating Redis.
const server = http.createServer();
const wsServer = new WebSocketServer({ server });
const port = 3000;
const redis = createClient({
  url: process.env.REDIS_CONNECTION_URL
});
redis.on('error', err => console.log('Redis Client Error', err));
server.listen(port, async () => {
  await redis.connect();
  console.log(`WebSocket server is running on port ${port}`);
});
And last, but certainly not least is the nginx conf.
server {
        server_name stef.page www.stef.page;
        root /var/www/stef.page/build;
        index index.html;
location /ws {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/stef.page/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/stef.page/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
server {
    if ($host = www.stef.page) {
        return 301 https://$host$request_uri;
    } # managed by Certbot
    if ($host = stef.page) {
        return 301 https://$host$request_uri;
    } # managed by Certbot
        listen 80;
        listen [::]:80;
        server_name stef.page www.stef.page;
    return 404; # managed by Certbot
}

当我运行'node index.js'时，响应是令人满意的。一切似乎都在运行。但是在客户端上，我目前在这个配置上收到的错误是：WebSocket连接到“wss：//localhost：3000/ws”失败