old_contents: import React from 'react'
  import { Router } from 'react-router'
  import routes from 'routes'
  import initialize from './initialize'
  import Providers from './Providers'
  import 'babel-polyfill'
  import 'assets/styles/app.scss'
  
  const App = ({ store, history }) =>
    <Providers store={store}>
      <Router history={history} routes={routes} />
    </Providers>
  
  export default initialize(App)
  
new_contents: import React from 'react'
  import { Router } from 'react-router'
  import routes from 'routes'
  import initialize from './initialize'
  import Providers from './Providers'
  import 'babel-polyfill'
  import 'rxjs'
  import 'assets/styles/app.scss'
  
  const App = ({ store, history }) =>
    <Providers store={store}>
      <Router history={history} routes={routes} />
    </Providers>
  
  export default initialize(App)
  
subject: Fix example