Proxy error: Could not proxy request /api/customers from localhost:3000 to localhost:5000/. See Here for more information (ECONNRESET). fetch from react fetch(`${process.env.REACT_APP_API_URL}/customers`) .then(res => res.json()) .then(res => setData(res)) .catch(err => console.error(err))…Read moreexpress – proxy requests from localhost econnreset