do_ajax.js

function do_ajax(args, dfd, attempt) {
    dfd || (dfd = $.Deferred());
    attempt || (attempt = 1);

    $.ajax(args).then(dfd.resolve, function(xhr, text_status, error_thrown) {
        console.error('Fail on attempt', attempt + '!', 'Text status', text_status);
        attempt++;

        if(attempt > 3) {
            dfd.reject(xhr, text_status, error_thrown);
        } else {
            do_ajax(args, dfd, attempt);
        }
    });

    return dfd.promise();
}