I'm new to jQuery, and it really cool, but I can't get the basic ajax work, there's no error in the console ,so I don't know where goes wrong:

getJSON function version:

   $(document).ready(function(){
        $.getJSON('http://pollview:8888/js/example.json', function(data){
            for(var element in data){
                console.log(data[element]);
            }
        });

    });

then the basic ajax version:

$(document).ready(function(){

    $.ajax({
        url: 'http://pollview:8888/js/example.json'
    }).done(function(data){
        alert('successful');
    });
});

I get me stuck, any idea?