GTM - Virtual Page Path

function() {
  var  virtualPagePath = '';
  
  try {
    // Add subdomain before page path
    var locationSplitDot = window.location.host.split('.');
    if (locationSplitDot && locationSplitDot[1]) {
      if (locationSplitDot[0] !== 'www') {
        virtualPagePath = location.host;
      }
    }
  } catch(e) {
    console.error(e)
  }
  
  // Add current page path
  virtualPagePath += location.pathname;
  
  return virtualPagePath;
}