WebSocket connection failed: Error during WebSocket handshake: Unexpected response code: 400

Question

I am trying to integrate Socket.io with Angular and I\'m having difficulties making a connection from the client-side to the server. I\'ve looked through other related quest

Answer 1

In my case, I have just install express-status-monitor to get rid of this error

here are the settings

install express-status-monitor
npm i express-status-monitor --save
const expressStatusMonitor = require('express-status-monitor');
app.use(expressStatusMonitor({
    websocket: io,
    port: app.get('port')
}));