content: import React from 'react';
  import { Helmet } from 'react-helmet';
  import config from '../config';
  
  export default () => {
    const meta = config.app.meta;
    return (
      <Helmet>
        <meta charSet={meta.charSet} />
        {Object.keys(meta.properties).map((key, i) => (
          <meta key={i} property={key} content={meta.properties[key]} />
        ))}
      </Helmet>
    );
  };
  