Websocket on DigitalOcean apps does not work.

Hello, I have a component in the DigitalOcean apps in nodejs with and another component running a static website in reactjs inside the same DigitalOcean app running on localhost the site can connect to the websocket without problems but when I deploy to DigitalOcean does not connect, rest requests work ok.


const socket = socketIOClient(process.env.REACT_APP_WS, {
  query: `token=${token}`,


const server = http.createServer(app);
const io = socketIo(server);

I appreciate any help.

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PS: i get error: Error during WebSocket handshake: Unexpected response code: 503