how to resolve cross-domain issues using wcf services

how to resolve cross-domain issues using wcf services

$.ajax({
               type: "POST",
               contentType: "application/json; charset=utf-8",
               url: 'http://localhost:49878/Employee.svc/GetEmployeeList',

               dataType: "json",
               success: function (data) {
                   //alert(data.d);
                   $($.parseJSON(data.d)).each(function (index, value) {
                       $("#TableID").append("<tr><td>" + value.EmpId + "</td><td>" + value.EmpName + "</td><td>" + value.Desgination + "</td></tr>");
                   });
               },
               error: function (result) {
                  // alert(result);
               }
           });

private static void ResponseHeaders()
        {
            WebOperationContext.Current.OutgoingResponse.Headers.Add(
                          "Access-Control-Allow-Origin", "*"); WebOperationContext.Current.OutgoingResponse.Headers.Add(
                          "Access-Control-Allow-Methods", "POST"); WebOperationContext.Current.OutgoingResponse.Headers.Add(
                          "Access-Control-Allow-Headers", "Content-Type, Accept");
        }
        public List<Employe> GetEmployeeList()
        {
            var listEmployee = new TestEntities().Employes.ToList();
              ResponseHeaders();
            return listEmployee;
        }