$(".dropdown-item").click(function(e){
    e.preventDefault();
        var character = {'character': $(this).attr('id'),'categoryId': idCategory};
            ajax ('library/main.php', 'POST', showProducrs, character);

        var charact = URL + $(this).attr('href');
        history.pushState(charact, '', charact);
        console.log ('character=', character, 'charact=', charact);
});