Reader.ParseArticle will raise weird HttpRequestException exception

[doggy8088]

For this code:

Article article = Reader.ParseArticle(url);

If request to the url returned HTTP 403 Forbidden, it will raise HttpRequestException exception. The exception object will contains a .StatusCude property but the value will be (null), and the .Message property will contains Cannot GET resource <URL>. StatusCode: Forbidden. That's not what I expected.