无法使用websocket进行连接。获取getaddrinfo ENOTFOUND错误

我正在尝试使用web套接字从站点获取数据。这是我的密码

         var WebSocketClient = require('websocket').client;
         var client = new WebSocketClient();
          client.on('connectFailed', function(error) {
          console.log('Connect Error: ' + error.toString());
          });

          client.on('connect', function(connection) {
          console.log('WebSocket Client Connected');
          connection.on('error', function(error) {
              console.log("Connection Error: " + error.toString());
          });
         connection.on('close', function() {
           console.log('echo-protocol Connection Closed');
         });
          connection.on('message', function(message) {

           console.log("Received: '" + message + "'");

         });

        function sendNumber() {
            if (connection.connected) {
                 connection.sendUTF(JSON.stringify({
                    key: 'Anisha$Hi'
                    }));
              } 
        }
         sendNumber();
      });



     client.connect('wss://sarthak999.pythonanywhere.com/', 'echo-protocol');

但我收到连接错误addrnotfound。问题是什么？我想从URL获取一些数据。这是我收到的错误：

      Connect Error: Error: getaddrinfo ENOTFOUND sarthak999.pythonanywhere.com sarthak999.pythonanywhere.com:443

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您无法通过wss连接到Pythonywhere webapp（不支持）