javascript - 未能在“RTCDataChannel”上执行“发送”：RTCDataChannel.readyState 不是“打开”

Question

我正在尝试学习 WebRTC 。我复制了一些代码，我得到了这个错误：

未能在“RTCDataChannel”上执行“发送”：RTCDataChannel.readyState 不是“打开”

任何人都可以帮忙吗？

代码分数：http ://www.tutorialspoint.com/webrtc/webrtc_text_demo.htm

Answer 1

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

  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

The same error was thrown to me .This is because your peers are not connected and you are sending data.This was solved by this:

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