Websocket 失败 无效的帧头

Question

我正在使用 socket.io 和 peerjs 创建视频会议应用程序。在本地主机上一切正常。但是当我在heroku上推送/托管它时，它会在浏览器的控制台中显示这个错误：

index.js:83 WebSocket connection to 'wss://vidconsom.herokuapp.com/socket.io/?EIO=3&transport=websocket&sid=zbEGAHBj9w_dpcQfAAAF' failed: Invalid frame header.

有人可以帮忙吗？

更新：检查下面的答案

这是我的 server.js 代码：

const express = require("express");
const app = express();
const path = require("path");
// const { PeerServer } = require("peer");
const { ExpressPeerServer } = require("peer");
const { v4: uuidV4 } = require("uuid");

const server = require("http").Server(app);
const io = require("socket.io")(server);

const PORT = process.env.PORT || 3000;
const expServer = server.listen(PORT, () =>
  console.log(`Server started on port ${PORT}`)
);

const peerServer = ExpressPeerServer(expServer, {
  path: "/peer",
});

app.set("view engine", "ejs");
app.use(express.static(path.join(__dirname, "/public")));

app.use(peerServer);

app.get("/", (req, res) => {
  res.redirect(`/${uuidV4()}`);
});

app.get("/:room", (req, res) => {
  res.render("room", {
    roomId: req.params.room,
    PORT,
    host: process.env.host | "/",
  });
});

io.on("connection", (socket) => {
  socket.on("join-room", (roomId, userId) => {
    socket.join(roomId);
    socket.to(roomId).broadcast.emit("user-connected", userId);

    socket.on("disconnect", () => {
      socket.to(roomId).broadcast.emit("user-disconnected", userId);
    });
  });
});

这是我的前端 script.js 代码：

const socket = io("/");
const videoGrid = document.getElementById("video-grid");
const myPeer = new Peer(undefined, {
  host: "/",
  port: PORT,
  path: "/peer",
});
const myVideo = document.createElement("video");
myVideo.muted = true;
const peers = {};
navigator.mediaDevices
  .getUserMedia({
    video: true,
    audio: true,
  })
  .then((stream) => {
    addVideoStream(myVideo, stream);

    myPeer.on("call", (call) => {
      call.answer(stream);
      const video = document.createElement("video");
      call.on("stream", (userVideoStream) => {
        addVideoStream(video, userVideoStream);
      });
    });

    socket.on("user-connected", (userId) => {
      connectToNewUser(userId, stream);
    });
  });

socket.on("user-disconnected", (userId) => {
  if (peers[userId]) {
    peers[userId].close();
  }
});

myPeer.on("open", (id) => {
  socket.emit("join-room", ROOM_ID, id);
});

function connectToNewUser(userId, stream) {
  const call = myPeer.call(userId, stream);
  const video = document.createElement("video");
  call.on("stream", (userVideoStream) => {
    addVideoStream(video, userVideoStream);
  });
  call.on("close", () => {
    video.remove();
  });

  peers[userId] = call;
}

function addVideoStream(video, stream) {
  video.srcObject = stream;
  video.addEventListener("loadedmetadata", () => {
    video.play();
  });
  videoGrid.append(video);
}

Answer 1

在前端 script.js 部署到 heroku 时使用端口 443：

const myPeer = new Peer(undefined, {
  host: "/",
  port: 443,
  path: "/peer",
});