text: _satellite.pushAsyncScript(function(event, target, $variables){
    setTimeout(function(){
    if(document.getElementById('unpaywall') !== null) {
      pageDataTracker.trackEvent('addWebsiteExtension', {
        page: {
          websiteExtension: 'sd:1'
        }
      });
    }
  }, 4000);
  
  });
  