Lighthouse/src/index.js

import React from 'react'
import ReactDOM from 'react-dom'
import { createStore } from 'redux'
import { Provider } from 'react-redux'
import reducers from './Store/Reducers'
import App from './App'

const devToolsEnabled = ENV != 'production' && window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__()

let store = createStore(reducers, devToolsEnabled)
window.onload = () => ReactDOM.render(<Provider store={store}><App /></Provider>, document.getElementById('root'));

if (ENV != 'production') {
    module.hot.accept();
}