helmet-example.js

...

renderHead () {
  return (
	  <Helmet
		  titleTemplate={'%s | ' + config.siteName}
		  meta=[{ ... }]
		  links={[{
		    rel='icon',
		    type='image/png',
		    sizes='16x16',
		    href={require('../public/favicons/favicon-16x16.png'),
		  }, {
		    ...
		  }]}
	  />
  );
}