Why does the script not work on iPhone in safari?

Question

JavaScript

Why does the script not work on iPhone in safari?

$('.ortop-input input').on('click', function () {
    var sizedata = $('.option-size .options-list input:checked').attr('data-size');
    $(this).parent().next().find("label:contains(" + "'" + " " + sizedata + "'" + ")").trigger('click');
    if ($('#yashiki-kolesa-input, #yashiki-napravl-input').is(':disabled')) {
        $('.yashiki-kolesa-value input').attr('disabled', false);
        $('.yashiki-napravl-value input').attr('disabled', false);
        $('#yashiki-kolesa-input').attr('disabled', false);
        $('#yashiki-napravl-input').attr('disabled', false);
    } else {
    }
});