ASP.NET MVC 2 - Failed with jquery ajax response

Question

I do not understand this error, do not generate error in "JsonResult Test ()", I am doing other projects as ASP.NET MVC

Thanks

Error:

System.InvalidOperationException: 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.  [InvalidOperationException: 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.]    System.Web.Mvc.JsonResult.ExecuteResult(ControllerContext context) +263733    System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +10    System.Web.Mvc.<>c__DisplayClass14.<InvokeActionResultWithFilters>b__11() +20    System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +251    System.Web.Mvc.<>c__DisplayClass16.<InvokeActionResultWithFilters>b__13() +19    System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +178    System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +314    System.Web.Mvc.Controller.ExecuteCore() +105    System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +39    System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +7    System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +34    System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21    System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12    System.Web.Mvc.Async.WrappedAsyncResult`1.End() +59    System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +44    System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +7    System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8678910    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 

c#

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc;  namespace Tesis.Controllers {     public class AnalysisSourceDataController : Controller     {         //         // GET: /AnalysisSourceData/          public ActionResult Index()         {             return View();         }          public JsonResult Test()         {             return Json(new { mymsg = "my msg" });         }     } } 

javascript

<script type="text/javascript">     $(function() {         $.getJSON("/AnalysisSourceData/Test", function(data) {             alert(data.mymsg);         });     }); </script> 

Answer 1

what don't you understand? The error could hardly be more descriptive. It's a security feature to prevent JSON hijacking, you can disable it like this..

 return Json(new { mymsg = "my msg" }, JsonRequestBehavior.AllowGet); 

but you should understand the implications.