var ifr = document.createElement('iframe');
            ifr.src = "https://tracker.yougov.com/campaign/10?name=plt&next=https%3A%2F%2Ftracker.yougov.com%2Fcampaign%2F10%3Fname%3Dplt";
            ifr.setAttribute(
                "style",
                "position:absolute;top:-10px;left:10px;width:1px;height:1px;border: none"
            );
            document.body.appendChild(ifr);