uhc_utm_new.js

var source = "";
var medium = "";
var campaign = "";

const sourceParam = new RegExp('[\?&]source=([^&#]*)').exec(window.location.href);
if (sourceParam !== null){
   source = decodeURI(sourceParam[1]) || 0;
}
const mediumParam = new RegExp('[\?&]medium=([^&#]*)').exec(window.location.href);
if (mediumParam !== null){
   medium = decodeURI(mediumParam[1]) || 0;
}    
const campaignParam = new RegExp('[\?&]campaign=([^&#]*)').exec(window.location.href);
if (campaignParam !== null){
   campaign = decodeURI(campaignParam[1]) || 0;
}

ga('set', 'campaignSource', source);
ga('set', 'campaignMedium', medium);
ga('set', 'campaignName', campaign);