Curl command gives cannot GET /socket.io error

[jak6jak]

I'm having trouble connecting to my socket io server. When I followed the troubleshooting documentation it gives me an error:

PS C:\Users\jacob> curl "http://localhost:3000/socket.io/?EIO=4&transport=polling"
curl : Cannot GET /socket.io/
At line:1 char:1
 curl "http://localhost:3000/socket.io/?EIO=4&transport=polling"
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebExc
   eption
    + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

here is my server code:

require('dotenv').config();
const express = require('express');
const server = express();
const http = require('http').createServer(server);
const cors = require('cors');
const io = require('socket.io')(http, {
    cors: {
        origin: "localhost:8080",
        methods: ["GET", "POST"]
    }
});

const history = require('connect-history-api-fallback');
const serveStatic = require('serve-static');


const mongoose = require('mongoose');
mongoose.connect(process.env.DATABASE_URL, {useNewUrlParser: true});
const db = mongoose.connection;
db.on('error', (error)=> console.log(error));
db.once('open', () => console.log('Connected to Database!'))

server.use(express.json());
server.use(cors());
server.use(history());

io.on('connection', (socket) => {
    console.log("a user connected");
})

const router = require('./pollPage');
server.use('/pollPage', router);

server.use(serveStatic('../dist'))

server.listen(process.env.PORT || 3000, () => console.log("server started!"))

What am I doing wrong and how do I fix this? I'm using Express ^3.1.1 both on server and client