feathers: socket.io-client v 3.0.1 incompatible

Ran into an issue with @feathersjs/socketio-client not working with the latest version of socket.io-client (3.0.1) It fails to establish the socket connection returning (bad handshake)

Steps to reproduce

create a new feathersjs application that uses socketio

install these packages in your frontend: @feathersjs/feathers@4.5.10 @feathersjs/socketio-client@4.5.10 socket.io-client@3.0.1

in your frontend set up the socket connection following the code from the @featherjs/socketio-client documentation.

const feathers = require('@feathersjs/feathers');
const socketio = require('@feathersjs/socketio-client');
const io = require('socket.io-client');

const socket = io('http://api.feathersjs.com');
const app = feathers();

// Set up Socket.io client with the socket
app.configure(socketio(socket));

Expected behavior

Should successfully establish the connection.

Actual behavior

gets a (bad handshake) return, and then proceeds to try again repeatedly with no success.

If I downgrade socket.io-client to version 2.3.0 it works without an issue. I am not sure if this is a bug with @feathersjs/socketio-client, socket.io-client v3.0.1 or if there is just some additional configuration necessary to get socket.io-client v3.0.1 working, in which case the documentation should probably be updated.

System configuration

Module versions (especially the part that’s not working): @feathersjs/feathers 4.5.10 @feathersjs/socketio-client 4.5.10 socket.io-client 3.0.1

NodeJS version: 12.18.0 Operating System: Windows 10

Browser Version: Chrome v86.0.4240.198

React Native Version:

Module Loader: