addad

 function getCookie(name) {
            var cookieValue = null;
            if (document.cookie && document.cookie !== '') {
                var cookies = document.cookie.split(';');
                for (var i = 0; i < cookies.length; i++) {
                    var cookie = cookies[i].trim();
                    // Does this cookie string begin with the name we want?
                    if (cookie.substring(0, name.length + 1) === (name + '=')) {
                        cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                        break;
                    }
                }
            }
            return cookieValue;
        }

        $('#download').on('click', function () {
            console.log('sadsadasdas');
            $.ajax({
                url: 'download/',
                method: 'POST',
                data: {
                    'filename': filename,
                    'image_url': image_url,
                    csrfmiddlewaretoken: getCookie('csrftoken')
                },
                dataType: 'json',
                success: function (response) {
                    console.log(response);
                }
            });
        });
    });
</script>