Sending a self-signed certificate from proxy secure websocket to a secure websocket connection(wss) - ssl

Question

I am trying to connect to wss(proxy) with self-signed certificate using wscat and browser but it giving me errors.
https running on 8443 with certificate cert.pem
proxy running on 8080 with secure true
Things I have tried to make sure my secure server is running properly.
I can reach https://localhost:8443 and receive "hello from a secure world"
I can connect to wss://localhost:8443 with wscat wscat -c wss://localhost:8443 --ca cert.pem and it works
Errors I get:
I cannot reach the proxy https://localhost:8080 from browser. I get This site can’t provide a secure connection and 500 status code
I cannot connect to wss://localhost:8080 with wscat -c wss://localhost:8080 --ca cert.pem I get error: write EPROTO 140266887743360:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:../deps/openssl/openssl/ssl/record/ssl3_record.c:332:
What I think the issue is that my proxy server is unable to take the cert.pem and pass it to the https server. I have looked everywhere but I can't find how to connect to wss(proxy) with a self-signed certificate. I can't supress the
/server
const app = express()
app.use('/', function (req, res) {
res.writeHead(200);
res.end("hello from a secure world\n");
})
export const server = https.createServer({
cert: fs.readFileSync(path.resolve(__dirname, 'cert.pem'), 'utf-8'),
ca: fs.readFileSync(path.resolve(__dirname, 'cert.pem'), 'utf-8'),
key: fs.readFileSync(path.resolve(__dirname, 'server.key'), 'utf-8')
}, app)
const wss = new WebSocket.Server({ server });
wss.on('connection', function connection(ws) {
console.log("connected");
ws.on('message', function incoming(message) {
console.log('received: %s', message);
ws.send('hello from server!, the time is: ' + timestamp());
});
});
/Proxy
const wsProxy = createProxyMiddleware('/', {
target: `https://localhost:8443`,
changeOrigin: true,
secure: true,
ws: true,
ssl: {
cert: fs.readFileSync(path.resolve(__dirname, 'cert.pem')),
}
});
const app = express();
app.use(wsProxy);
const proxy = app.listen(8080)
proxy.on('upgrade', wsProxy.upgrade); // <-- subscribe to http 'upgrade'

Answer 1

Okay, it turned out that I was missing something crucial there. There wasn't really a "proxy websocket" I was confusing https proxy with websocket proxy. Once I made sense of that it solved my problem. I had to create a websocket with using https server(with cert and key) then I could just connect to the wss with the same cert and key :)