无法对‘RTCDataChannel’执行'send‘：RTCDataChannel.readyState不是'open’

Question

我正在努力学习WebRTC。我复制了一些代码，得到了这个错误：

无法对‘RTCDataChannel’执行'send‘：RTCDataChannel.readyState不是'open’

有人能帮上忙吗？

代码得分：http://www.tutorialspoint.com/webrtc/webrtc_text_demo.htm

Answer 1

删除{optional: [{RtpDataChannels: true}]}后添加ondatachannel处理

  myConnection.onicecandidate = function (event) { 

     if (event.candidate) { 
        send({ 
           type: "candidate", 
           candidate: event.candidate 
        });
     } 
  }; 

  myConnection.ondatachannel = function(event) {
     var receiveChannel = event.channel;
     receiveChannel.onmessage = function(event) {
        console.log("ondatachannel message:", event.data);
     };
  };

  openDataChannel();

Answer 2

向我抛出相同的错误是因为您的对等体没有连接，而您正在发送的data.This已通过以下方式解决：

peer.on('connect', () => {
    console.log('I am connected now')
    peer.send('sending data blah blah')
  })