This request has been blocked because sensitive information

想在ASP.NET MVC 中的控制器中返回一个Json对象，结果调用时报错：
This request has been blocked because sensitive information could be disclosed to third party web sites when this is used in a GET request. To allow GET requests, set JsonRequestBehavior to AllowGet

This request has been blocked because sensitive information，首发于非苔笔记。