new-server/webui/src/setupProxy.js

const proxy = require("http-proxy-middleware");

let config = {url: "http://127.0.0.1:9000/"};

module.exports = function(app) {
    app.use(proxy('/api/ws', { target: config.url, ws: true }));
    app.use(proxy('/api', { target: config.url, ws: false }));
};