Error During handshake: Error 4040

[lanceliamll]

Console keeps saying
websocket.js:120 WebSocket connection to 'ws://localhost:5000/socket.io/?EIO=3&transport=websocket' failed: Error during WebSocket handshake: Unexpected response code: 404

Server Side

io.on("connection", (socket) => {
  console.log("New connection joined");

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

Client Side

  socket = io("http://localhost:5000", { transports: ['websocket'] });
}, [])```

this should work fine right ?

- OS: Windows 10
- browser: Google Chrome
- socket.io version: 2.3.0

[PDROJACK]

Is your socket port correct?

[hmagrahi]

It's because socket.io add a / at the end this caused this bug :/

[darrachequesne]

Closed due to inactivity, please reopen if needed.