(function(scope){ 'use strict'; imprint.registerTest("adBlocker", function(){ return new Promise(function(resolve) { var adsbox = document.createElement('div'); adsbox.innerHTML = ' '; adsbox.className = 'adsbox'; adsbox.style.display = 'block'; adsbox.style.position = 'absolute'; adsbox.style.top = '0px'; adsbox.style.left = '-9999px'; try { // body may not exist, that's why we need try/catch document.body.appendChild(adsbox); window.setTimeout(function() { var result = adsbox.offsetHeight === 0; document.body.removeChild(adsbox); return resolve(result); }, 10); } catch (e) { return resolve(false); } }); }); })(window);