Why doesn't ajax work in FireFox MODX?

Question

AJAX

In Chrome it returns values, but in Mozilla it doesn't.

Processor Multiplies field values ​​and outputs them back with Ajax.

$('#xloform button').on('click', function(evt){
       evt.preventDefault();
        var first = Number($('#first_zn').attr('value'));
       var second = Number($('#second_zn').attr('value'));
       console.log(first, second);
        
        $.ajax({
           type: "POST",
           cache: false,
           url: "ajax1",
           data: "first="+first+"&second="+second+"",
           success: function(msg){
             console.log( "Данные успешно сохранены: " + msg );
             msg = msg.replace(/<\/?[a-zA-Z]+>/gi,'');
             $('#res').text(msg);
           }
        });//ajax
    });//click
});

Answer 1

Because your request to the address modx2.my-tamagochi.ru/ajax1 returns a response with a 404 error. And not only in Firefox, I also checked with Yandex.Browser, Edge and Chrome - the same thing.

Answer 2

Perhaps this page is not published, but in chrome you are authorized in the admin panel?