{ [Error: xhr post error] type: 'TransportError', description: 503 }

socket.io client connect server client throw this error

{ [Error: xhr post error] type: 'TransportError', description: 503 }

more error info

  socket.io-client:manager will wait 1167ms before reconnect attempt +0ms
  engine.io-client:socket probe transport "websocket" failed because of error: socket closed +1ms
  engine.io-client:socket socket error {"description":503} +0ms
  socket.io-client:manager error +1ms { [Error: xhr poll error] description: 503 }

other question why i use socket.io-client connect server ,the transport is polling not websocket?

[minhquankq]

When I set transports to ['websocket'], I got an error 'connect_error', [Error: websocket error]. But, when I change to { transports: ['websocket'] }, I also got an error 'connect_error', [Error: xhr poll error]

[lonso]

fixed,this error need to set client transports like this.

io.connect(config.serverAdd + '/wsservices', {
            ...
            transports: ['websocket''],
            ....
        });