failed: Error during WebSocket handshake: Unexpected response code: 403

my config

var express = require('express');
var proxy = require('http-proxy-middleware');

var wsProxy = proxy('/', {
	target: 'http://preview-hgpos.behuntergatherer.com',
	changeOrigin: true, // for vhosted sites, changes host header to match to target's host
	ws: true, // enable websocket proxy
	logLevel: 'debug'
})

var app = express()
app.use('/', express.static(__dirname))
app.use(wsProxy) // add the proxy to express

var server = app.listen(8070)
server.on('upgrade', wsProxy.upgrade) // optional: upgrade externally

my terminal

 Proxy created: /  ->  http://preview-hgpos.behuntergatherer.com
[HPM] Subscribed to http-proxy events:  [ 'error', 'close' ]
[DEMO] Server: listening on port 3000
[DEMO] Opening: http://localhost:3000
[HPM] GET /websocket/webSocketIMServer -> http://preview-hgpos.behuntergatherer.com
[HPM] Upgrading to WebSocket

browser console error

WebSocket connection to 'ws://localhost:8070/websocket/webSocketIMServer' failed: Error during WebSocket handshake: Unexpected response code: 403

I need help, Thx!

[aral]

To translate the last comment: “My problem has been solved because the backend framework restricts websocket requests from other domains, and the backend can be connected by removing the restrictions.”

[gauseen]

@kellywang1234 不好意思，时间太久忘记了，好像是跨域的问题，配置一下 CORS 就可以了