System.InvalidOperationException

Question

System. Invalid Operation Exception : 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 Json Request Behavior to Allow Get.   Stack trace :   t System.Web.Mvc.JsonResult.ExecuteResult(ControllerContext context) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult) at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21. b__1e(IAsyncResult asyncResult)

Chetan Ranpariya · Answer

Hi,   It looks like you are returning JsonResult from your controller. If that's true then you need to pass one more parameter to Json Method as following.  return  Json(yourObject, JsonRequestBehavior.AllowGet);   This should solve your issue.   Thanks and regards, Chetan Ranpariya

Rajeev Punhani · Answer

Hi Upendra,     By default, the ASP.NET MVC framework does not allow you to respond to an HTTP GET request with a JSON payload. If you need to send JSON in response to a GET, you'll need to explicitly allow the behavior by using JsonRequestBehavior.AllowGet as the second parameter to the Json method.   return  Json(response, JsonRequestBehavior.AllowGet);    But to prevent Json Hacking we should not allow get request as described in article. http://haacked.com/archive/2009/06/25/json-hijacking.aspx/

Nigel Fernandes · Answer

return  Json(obj, JsonRequestBehavior.AllowGet);

Bikesh Srivastava · Answer

can you let me know ,are you working under VPN