在 Heroku 上运行时发出 traceroute 跃点时，socket.io 失败

如何解决在 Heroku 上运行时发出 traceroute 跃点时，socket.io 失败

所以我有这个建立socket.io连接的应用程序。它显示一个游戏（chrome恐龙游戏），当一个游戏失败时，客户端发出请求，并触发服务器端的traceroute脚本，从第三方服务器获取IP位置，然后将位置传递给客户端，其中映射到了一个 Leaflet.js 地图上。

代码在我的本地机器上完美运行，但是一旦我将它上传到heroku，它就会显示以下错误：

index.js:83 GET https://floating-dusk-44098.herokuapp.com/socket.io/?EIO=3&transport=polling&t=NZclCXa 503（服务不可用）

我的服务器端代码：

const express = require("express");
const bodyParser = require("body-parser");
const fetch = require('node-fetch');
//Node Traceroute
const traceroute = require('nodejs-traceroute');

const app = express();

//socket import
const httpServer = require("http").createServer(app);
const options = {
  /* ... */ };
const io = require("socket.io")(httpServer,options);



//Establishes the socket connection
io.on("connection",socket => {
  console.log("Connection established");

//Gets some IP addresses and a list with locations,as well as a list with the name of those locations
  const randomId = Math.floor(Math.random() * IPlist.length)
  var item = IPlist[randomId];
  var chIpLoc = IpLocations[randomId];
  var locName = ipLocationName[randomId];

  socket.emit("videoID",randomId);

  //Listens for Game Over socket event
  socket.on("gameOver",function(data){
    console.log(data);
  //Traceroute Code
  let IPinfo = require("node-ipinfo");

  try {
    const tracer = new traceroute();
    tracer
      .on('pid',(pid) => {
        console.log(`pid: ${pid}`);
      })
      .on('destination',(destination) => {
        console.log(`destination: ${destination}`);
        socket.emit("firewallData",{
          destLocation : chIpLoc,destName : locName,});
      })
      .on('hop',(hop) => {
        if (hop.ip == 'Request timed out.') {
          console.log('No IP found for this hop');
        } else {
          console.log(hop.ip);
          // Ip lookup code
          let token = tokens[Math.floor(Math.random() * tokens.length)];
          let ip = hop.ip
          let ipinfo = new IPinfo(token);

          ipinfo.lookupIp(ip).then((response) => {
            console.log(response.loc);
            socket.emit("serversLocation",response.loc);
          });
        }
      })
      .on('close',(code) => {
        console.log(`close: code ${code}`);
      });

    tracer.trace(item); 
  } catch (ex) {
    console.log(ex);
  }

客户端代码：

<script src="/socket.io/socket.io.js"></script>
  <script>
    const socket = io();

    socket.on("serversLocation",(arg) => {
      console.log(arg);
      mapServerLocation(arg);
    });
    socket.on("videoID",(id) => {
      console.log(id);
      vidFile = id;
    });
    socket.on("firewallData",(fire) => {
      console.log("Firewall Data: ",JSON.stringify(fire));
      mapDestination(fire.destLocation[0])
      document.getElementById("destText").textContent = "Destination: " + fire.destName;
    });
  </script>

非常感谢任何帮助！