我试着写棘轮聊天webAapplication.它在xampp上工作得很好，但它在服务器上不工作.我从ssh运行server.php，打开网站时得到这个错误：WebSocket连接到“ws：//”。
下面是我代码：
server.php:

<?php 

use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use MyApp\Chat;

    require dirname(__DIR__) . '/vendor/autoload.php';

    $server = IoServer::factory(
        new HttpServer(
            new WsServer(
                new Chat()
            )
        ),
        8080
    );

    $server->run();
?>

index.php:

<script>
const conn = new WebSocket('ws://farahaniacademy.com:8080');
        conn.onopen = function(e)
        {
            console.log("Connection established!");
        };
</script>