--- name: Bug report about: Create a report to help us improve title: '' labels: 'to triage' assignees: '' --- **Describe the bug** A clear and concise description of what the bug is. **To Reproduce** Please fill the following code example: Socket.IO server version: `x.y.z` *Server* ```js 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: `x.y.z` *Client* ```js 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** A clear and concise description of what you expected to happen. **Platform:** - Device: [e.g. Samsung S8] - OS: [e.g. Android 9.2] **Additional context** Add any other context about the problem here.