text: import React from 'react';
  import ReactDOM from 'react-dom';
  import App from './App';
  import registerServiceWorker from './registerServiceWorker';
  import './index.css';
  
  ReactDOM.render(
    <App
      url={window.centova.url}
      refresh_in_seconds={window.centova.refresh_in_seconds}
      onair_true_img={window.centova.onair_true_img}
      onair_false_img={window.centova.onair_false_img}
      img_folder={window.centova.img_folder}
    />,
    document.getElementById('centova-on-air')
  );
  registerServiceWorker();
  