Is there a way to nest routes in React Router v4? This works: <Router basename='/app'> <main> <Route path='/' component={AppBar} /> <Route path='/customers' component={Customers} /> </main> </Router> This does not: <Router basename='/app'> <Route path='/' component={AppBar}> <Route path='/customers' component={Customers} /> </Route> </Router> Customers Component: import React, { Component, PropTyp