React Router Express Location - Server Side Rendering (isomorphic) // server.js import express from 'express';import ExpressLocation from 'express-location';import ReactRouter from 'react-router'; import routes from './routes'; const server = express(); server.use(function (req, res, next) { const location = new ExpressLocation(req.url, res); ReactRouter.run(routes, location, (Handler, state) => { if (location.redirect()) return; // ... });})