RTCQuicTransport：提供的值无法转换为序列

Question

当我尝试在 Javascript 上调用 RTCQuicTransport 的构造函数时，它抛出错误：Uncaught TypeError: Failed to construct 'RTCQuicTransport': The provided value cannot be converted to a sequence.

假设构造函数需要两个参数，一个 RTCIceTransport 对象和一个使用 RTCPeerConnection.generateCertificate() 生成的证书，它应该以这种方式工作但不是。

我试过将 'null' 作为证书传递，但仍然抛出相同的错误消息。如果我只是传递 RTCIceTransport 对象，它会抛出该构造需要两个参数。

// Include some helper functions
//import {trace, errorHandler, mySendLocalCandidate, 
myIceGathererStateChange,
//  myIceTransportStateChange, myDtlsTransportStateChange} from 'helper';
//import 'helper.js';

function initiate(mySignaller) {
// Prepare the IceGatherer
var gatherOptions = {
  gatherPolicy: "all",
  iceServers: [
    { urls: "stun:stun1.example.net" },
    { urls: "turn:turn.example.org", username: "user", credential: 
    "myPassword",
      credentialType: "password" }
   ]
};

// Create the IceTransport
var ice = new RTCIceTransport();
ice.onstatechange = function(event) {
  myIceGathererStateChange("iceGatherer", event.state);
};
// Handle errors
// Prepare to signal local candidates
ice.onlocalcandidate = function(event) {
  mySignaller.mySendLocalCandidate(event.candidate);
};

// Start gathering
ice.gather(gatherOptions);

// Prepare to handle remote ICE candidates
console.log(ice);
mySignaller.onRemoteCandidate = function(remote) {
  ice.addRemoteCandidate(remote.candidate);
};

// Create the certificate
var certs = {};
var keygenAlgorithm = { name: "ECDSA", namedCurve: "P-256"};

RTCPeerConnection.generateCertificate(keygenAlgorithm).
then(function(certificate){
  certs[0] = certificate;
}, function(){
  trace('Certificate could not be created');
});
// Create the DtlsTransport and QuicTransport
var quic = new RTCQuicTransport(ice, certs[0]);
console.log(quic);
mySignaller.sendInitiate({
  ice: iceGatherer.getLocalParameters(),
  quic: quic.getLocalParameters(),
  // ... marshall RtpSender/RtpReceiver capabilities as in Section 6.6 
Examples 8 and 9.
}, function(remote) {
  // Start the IceTransport, DtlsTransport and QuicTransport
  ice.start(iceGatherer, remote.ice, RTCIceRole.controlling);
  dtls.start(remote.dtls);
  quic.start(remote.quic);
  // ... configure RtpSender/RtpReceiver objects as in Section 6.6 
Examples 8 and 9.
});}

我正在关注 ORTC 快速示例，我希望获得一个 RTCQuicTransport 对象。

提前致谢

编辑:

我意识到当我在 generateCertificate() 函数中打印我的证书时，它工作正常：

RTCCertificate {expires: 1552505428000}
expires: 1552505428000

但是，从那个函数中，我得到了这个：

console.log(certs);

结果：

{}
  [0] RTCCertificate
      expires: 1552505951000

那我试试：

console.log(certs[0]);

结果：

undefined

Answer 1

与 RTCIceTransport 和 RTCQuic 传输兼容的网络浏览器是 Chrome 版本 73 Beta，据此：RTCQuicTransport over chrome 虽然我试图在 chrome 72 中使用 --enable-blink-features=RTCQuicTransport,RTCIceTransportExtension 标志运行它，但这还不够。

在 chrome 73 beta 中，我可以通过将 null 作为第二个参数传递并生成我自己的证书来创建 RTCQuicTransport。

RTCQuicTransport：提供的值无法转换为序列

RTCQuicTransport: The provided value cannot be converted to a sequence

javascript

google-chrome

chromium

webrtc

quic