why when ajax jquery call applied it call OnGet and not call OnGetshif

I work on razor asp.net . i face strange issue when apply ajax request it catch OnGet function get method

but correct or what I expect is to hit or catch OnGetshiftDataUp

why it catch on get and not catch OnGetshiftDataUp

when apply jquery ajax request it not catch OnGetshiftDataUp and catch OnGet why that happen

i write on url url: 'ShelfLabelPrinterSetUp?handler=shiftDataUp' so why it go to OnGet

full code sample

   $('#save-btn').click(function () {
                
                var param1Value = $('#editshelflabelModal #edit-ip').val();
          
                console.log(param1Value);
                $.ajax({
                    url: 'ShelfLabelPrinterSetUp?handler=shiftDataUp',
                    type: "GET",
                    dataType: "json",
                   
                    data: { serverip: param1Value },
                    success: function (result) {
                        alert(result);
                    },
                    error: function (xhr, status, error) {
                        console.log(error);
                    }
                });
            });
public ActionResult OnGetshiftDataUp(string serverip)
        {

           return new JsonResult("Success");

        }
public void OnGet()
        {
        }


    
        
            
               

            
            
                Hi,@TempData["UserID"]
                
            
            
            
        
                
                    
                        Server IP
                        
                    
                    
                        Printer Name
                        
                    
                    
                        Location Name

$.ajax({ url: 'ShelfLabelPrinterSetUp/shiftDataUp', type: "GET", dataType: "json", data: { serverip: param1Value }, success: function (result) { alert(result); }, error: function (xhr, status, error) { console.log(error); } });