无法对‘RTCPeerConnection’执行'setRemoteDescription‘：无法转换为字典

{
  "type": "offer",
  "sdp": "v=0\r\no=- 461173305486517... (rest of SDP)"
}

// 假设从服务器接收到的 SDP 是一个 JSON 字符串
const sdpString = '{"type":"offer","sdp":"v=0\\r\\no=- 461173305486517... (rest of SDP)"}';

// 解析 JSON 字符串
const sdp = JSON.parse(sdpString);

const remoteDescription = {
  type: sdp.type, // "offer" 或 "answer"
  sdp: sdp.sdp   // SDP 字符串
};

const peerConnection = new RTCPeerConnection();

peerConnection.setRemoteDescription(new RTCSessionDescription(remoteDescription))
  .then(() => {
    console.log('Remote description set successfully.');
  })
  .catch(error => {
    console.error('Failed to set remote description:', error);
  });

// 假设从服务器接收到的 SDP 是一个 JSON 字符串
const sdpString = '{"type":"offer","sdp":"v=0\\r\\no=- 461173305486517... (rest of SDP)"}';

try {
  // 解析 JSON 字符串
  const sdp = JSON.parse(sdpString);

  // 创建 RTCSessionDescriptionInit 对象
  const remoteDescription = {
    type: sdp.type, // "offer" 或 "answer"
    sdp: sdp.sdp   // SDP 字符串
  };

  // 创建 RTCPeerConnection 实例
  const peerConnection = new RTCPeerConnection();

  // 设置远程描述
  peerConnection.setRemoteDescription(new RTCSessionDescription(remoteDescription))
    .then(() => {
      console.log('Remote description set successfully.');
    })
    .catch(error => {
      console.error('Failed to set remote description:', error);
    });
} catch (error) {
  console.error('Failed to parse SDP:', error);
}