Making a Cross Domain Ajax call with an authorization Header in Internet Explore 8

Making a Cross Domain Ajax call with an authorization Header in Internet Explore 8

I am trying to make a cross Domain Ajax call with and authorization header


var requestForGettingEmployeeAttendence = $.ajax({
            type: "GET",
            url: attendenceServiceBaseUrl.concat(serviceMethodForGettingEmployeeAttendence).concat("?FromDate=" + formattedFirstDate + "&ToDate=" + formattedLastDate + "&EmployeeId=" + employeePartyId),
            headers: { 'Authorization': autherizationHeaderForAttendenceService },            
            crossDomain: true,            
            dataType: 'json',            
            contentType: 'application/json',
            cache: false,
            processData: true

        });

 requestForGettingEmployeeAttendence.done(gettingEmployeeAttendenceDetailsSuccessful);
 requestForGettingEmployeeAttendence.fail(gettingEmployeeAttendenceDetailsFailed);


This works fine in FireFox, Chrome and IE 11,10,9 but does not work in IE 8 :(  
any help is greatly appreciated. Thanks in advance