If you are building a React app that uses both redux and react-router,
you'll find that you are managing app state in two places. Most of your app
state is in redux. The router-specific state is component-state in the
Router.
You can unify it all in redux with
react-router-redux.
You'll need to apply some middleware, combine routerReducer with the rest
of your reducers, and then swap out your BrowserRouter with a
ConnectedRouter. You can read about the details
here.