Local server operations are running smoothly. However, when testing on a remote server with Nginx, the issue arises where the readyState inside the event handler onopen is consistently showing as CLOSED.
Nginx configuration:
server {
server_name domain.domain;
access_log /var/log/nginx/domain.domain.access.log;
error_log /var/log/nginx/domain.domain.error.log;
location / {
proxy_connect_timeout 1d;
proxy_send_timeout 1d;
proxy_read_timeout 1d;
proxy_pass http://localhost:3001;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "Upgrade";
proxy_set_header Host $host;
}
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/domain.domain/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/domain.domain/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
server {
if ($host = domain.domain) {
return 301 https://$host$request_uri;
} # managed by Certbot
server_name domain.domain;
listen 80;
return 404; # managed by Certbot
}
Sample server code:
import { WebSocketServer } from 'ws';
this.connection = new WebSocketServer(args, () => {
log('info', 'Server listen at port:', args.port, true);
});
this.connection.on('connection', (ws, req) => {
// Event is triggered fine
console.log('Client connected');
})
Sample client code:
const connection = new WebSocket(
'wss://domain.domain:443', 'json'
);
connection.onopen = () => {
// Although the event is triggered, connection.readyState remains CLOSED
setInterval(() => {
console.log(connection.readyState);
}, 1000)
}
connection.onerror = () => {
// This event is never triggered
}
connection.onclose = () => {
// This event is never triggered
}
Prior to this occurrence, the same code functioned seamlessly with identical server configurations. However, after recreating the virtual server from a backup, this issue emerged, despite all other functionality remaining consistent.