空响应 - 可读性API

Question

我使用以下jquery代码在我的localhost上测试Readability API：

$.getJSON("https://www.readability.com/api/content/v1/parser?url=" + encodeURIComponent(url), function( data ){

log(data);

});

带有以下响应标头：

HTTP/1.1 200 OK
Content-Encoding: gzip
Content-Type: application/json; charset=utf-8
Date: Wed, 18 Dec 2013 10:00:15 GMT
P3P: CP='Legacy Only. Go to https://readability.com/about/terms/ for full terms.'
Server: nginx/1.4.3
Vary: Accept-Encoding, Authorization, Cookie
Content-Length: 2601
Connection: keep-alive

然而，我得到了空洞的回应。知道出了什么问题吗？感谢。