Hello,
I have a problem with autocomplete of jQuery.
Here is my code

Code:
$('input#recipient').autocomplete ({
    source: function (request, callback) {
       var dataString = {username : request.username};
        $.ajax({
            url: url.root + 'email/',
            data: dataString,
            //cache: false,
            complete: function(xhr, result) {
               if(result != 'success') return;
                var response = xhr.responseText;
                var usernameList = [];
                $(response).filter('li').each (function() {
                    usernameList.push($(this).text());
                    )};
                    callback(usernameList);
                }
            });
    }
});
Can you tell me what's the problem
Thank you