Pagination Problem with jQuery

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ASP.NET

Javascript

jQuery

Hi guys i am developing an ASP.NET project and in my project i want to load products when the scroll down. This code which I write below;

$(window).scroll(function () {
                //console.log($(window).scrollTop().toString() + " - " + ($(document).height() - $(window).height()).toString());
                if ($(window).scrollTop() >= $(document).height() - $(window).height()) {
                    if (isPaginationEnded) { // if previous fetch has been completed.
                        fetchProducts(categoryId, ++pageIndex);
                    }
                }
            });

works perfectly when the page zoom %100, but when the zoom change it does not working.

Any help would be greatly appreciated,

Thanks everyone.