facebook javascript sdk登录弹出窗口无法打开

Question

我正在尝试在网站上实现facebook登录。以下是我的代码：

    $('#facebook_login').live('click',function(){
      FB.getLoginStatus(function(response) {

      if (response.status === 'connected') {

          var data = {facebook: true, accessToken: response.authResponse.accessToken }
          $.ajax({
                url: '/registerajax',
                type: 'POST',
                dataType: 'JSON',
                data: data,
                success: function(data){
                    console.log(data);
                }
          });
      }else if (response.status === 'not_authorized') {
            alert('The person is logged into Facebook, but not your app.');
        } else {
            alert('The person is not logged into Facebook, so we\'re not sure if they are logged into this app or not.');
        }   
 },{scope:'publish_actions'});
});

根据Chrome控制台，我从facebook获得302。我用谷歌搜索，但找不到任何相关的帖子。