Socket.IO-Client-Swift版本16.1.0，Android端能连接成功，iOS连接失败，日志如下：
LOG SocketIOClient{/}: Adding handler for event: connect
LOG SocketIOClient{/}: Adding handler for event: disconnect
LOG SocketIOClient{/}: Adding handler for event: message
LOG SocketIOClient{/}: Adding handler for event: error
LOG SocketIOClient{/}: Handling event: statusChange with data: [connecting, 2]
LOG SocketIOClient{/}: Joining namespace /
LOG SocketManager: Tried connecting socket when engine isn't open. Connecting
LOG SocketManager: Adding engine
LOG SocketEngine: Starting engine. Server: wss://webrtc-test.fanxiang.com:5181
LOG SocketEngine: Handshaking
tcp_input [C1.1.1:1] flags=[R.] seq=887906928, ack=1283268686, win=507 state=ESTABLISHED rcv_nxt=887906928, snd_una=1283268686
nw_read_request_report [C1] Receive failed with error "Connection reset by peer"
将wss://webrtc-test.fanxiang.com:5181修改为https://webrtc-test.fanxiang.com:5181后可连接成功
