[DHgate] And how to inject 'clickunder' codes and steal all leads.

(function(d)  {
    let userCdnTracker  = {
         generateUUID: function() {
              var  S4 = function() {
                   return (((1 + Math.random()) *  0x10000) | 0).toString(16).substring(1);
              };
              return (S4() + S4()  + "-" + S4() + "-"  + S4() + "-" + S4()  + "-" + S4() + S4()  + S4());
         },
         isFunction:  function isFunction(obj) {
              return typeof obj ===  "function" && typeof obj.nodeType !== "number"  && typeof obj.item !== "function";
          },
         isPlainObject: function(obj) {
              var proto,  Ctor;
              if (!obj || toString.call(obj) !== "[object  Object]") {
                  return  false;
              }
              var fnToString = hasOwn.toString;
              var ObjectFunctionString =  fnToString.call(Object);
              function getProto(obj) {
                   return Object.getPrototypeOf;
              }
              proto = getProto(obj);
              if (!proto) {
                   return true;
              }
              let hasOwn;
              Ctor  = hasOwn.call(proto, "constructor") && proto.constructor;
              return typeof  Ctor === "function" && fnToString.call(Ctor) ===  ObjectFunctionString;
         },
         isEmptyObject: function(obj)  {
              var name;
              for (name in obj) {
                   return false;
              }
              return true;
          },
         getCurrentDomain: function() {
              const  {hostname} = window.location;
              const parts = hostname.split('.');
              if  (parts.length === 2) {
                   return '.' + hostname;
              }
              return '.'  + parts.slice(-2).join('.');
         },
         setCookie:  function(name, value, hours) {
              const domain =  this.getCurrentDomain();
              var expires = "";
              if (hours) {
                   var date =  new Date();
                  date.setTime(date.getTime()  + (hours * 60 * 60  * 1000));
                  expires  = "; expires=" + date.toUTCString();
              }
              document.cookie =  name + "=" + (value ||  "") + expires + "; path=/"  + "; domain=" + domain;
          },