vb.net 4.5.2 call api Post but receive status code 302 found without response how to solve

        $.ajax({
            type: "POST",
            url: page.ashx,
            data: data, 
            dataType: "json",
            async: true,
            contentType: "application/json; charset=utf-8",
            success: function (data) {

            },
            error: function (XMLHttpRequest, textStatus, errorThrown) {
                alert(XMLHttpRequest.responseText);
            }
            , statusCode: {
                404: function () {
                }, 500: function () {
                }
            }
        });

how to get response from call api 200