(function (util) {
'use strict';
return {
'dns-prefetch': util.getResourceHintsHrefs('dns-prefetch'),
preconnect: util.getResourceHintsHrefs('preconnect'),
prefetch: util.getResourceHintsHrefs('prefetch'),
prerender: util.getResourceHintsHrefs('prerender')
};
})(util);