Does not work with Vite.js and vue 3.

Describe the bug The same code with webpack works. But Vite.js + Vue 3 is not. There is even no requests. Probably it’s not problem of socket.io-client package but something wrong with socket.io-client.

To Reproduce

Socket.IO server version: 4.2.0

Server

import { Server } from "socket.io";

const io = new Server(3000, {});

io.on("connection", (socket) => {
  console.log(`connect ${socket.id}`);

  socket.on("disconnect", () => {
    console.log(`disconnect ${socket.id}`);
  });
});

Socket.IO client version: 4.2.0

Client

import { io } from "socket.io-client";

const socket = io("ws://localhost:3000/", {});

socket.on("connect", () => {
  console.log(`connect ${socket.id}`);
});

socket.on("disconnect", () => {
  console.log("disconnect");
});

Expected behavior Expected to see console.log messages on server and client. But it’s not working at all.

Platform:

• OS: [e.g. Windows 10]

[Taykavol]

Also, now I checked that the versons(client) 4.1.x works great (event with socket.io server 4.2.0) but something wrong with 4.2.0 client.

[darrachequesne]

Please see my answer here: https://github.com/vitejs/vite/issues/4798#issuecomment-924620798