Ajax call success function parameter didn't get the json object of action method

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jQuery

MVC5

i have called ajax call that had worked successfully with success function also but i have used on modal popup in my project. once modal popup closed then i had called ajax cal at the time action method called that had excuted sucessfully with return 200 status but success function parameter didn't get the json object of action method

$.ajax({
         async: false,
         dataType: "json",
         type: "POST",
         url: '/Orders/delivery',
         data: JSON.stringify({ businessAddressId: _businessAddressId, Latitude: lat, Longitude: long, postalCode: code }),
         contentType: 'application/json; charset=utf-8',
         success: function (result) {
             if (result.status == true) {
                 debugger;
                 checkresult = result.status;

             $('#AddressSearch1').text(result.message)
         },
         error: function (xhr, ajaxOptions, thrownError) {
             //alert('error');
         }
     });

please help me.
thanks

What I have tried:

i have called ajax call that had worked successfully with success function also but i have used on modal popup in my project. once modal popup closed then i had called ajax cal at the time action method called that had excuted sucessfully with return 200 status but success function parameter didn't get the json object of action method