Object reference not set to an instance of an object. #3
Description
Using VS2012, created new MVC4 Internet app, followed PoliteCaptcha instructions:
- keys in the web.config
- @Html.SpamPreventionFields(), @Html.SpamPreventionScript() in the view
- [ValidateSpamPrevention] on the POST controller action.
The GET request view seems to render properly, with appropriate captcha html & script.
Upon post the error occurs, seems to be coming from the [ValidateSpamPrevention] attribute.
Stack trace:
[NullReferenceException: Object reference not set to an instance of an object.]
PoliteCaptcha.ReCaptchaValidator.Validate(HttpContextBase httpContext) +159
PoliteCaptcha.ValidateSpamPreventionAttribute.Authorize(HttpContextBase httpContext, ModelStateDictionary modelState, ICaptchaValidator captchaValidator) +272
PoliteCaptcha.ValidateSpamPreventionAttribute.OnAuthorization(AuthorizationContext filterContext) +498
System.Web.Mvc.ControllerActionInvoker.InvokeAuthorizationFilters(ControllerContext controllerContext, IList1 filters, ActionDescriptor actionDescriptor) +96 System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__1e(AsyncCallback asyncCallback, Object asyncState) +446 System.Web.Mvc.Async.WrappedAsyncResult1.Begin(AsyncCallback callback, Object state, Int32 timeout) +130
System.Web.Mvc.Async.AsyncControllerActionInvoker.BeginInvokeAction(ControllerContext controllerContext, String actionName, AsyncCallback callback, Object state) +302
System.Web.Mvc.<>c__DisplayClass1d.b__17(AsyncCallback asyncCallback, Object asyncState) +30
System.Web.Mvc.Async.WrappedAsyncResult1.Begin(AsyncCallback callback, Object state, Int32 timeout) +130 System.Web.Mvc.Controller.BeginExecuteCore(AsyncCallback callback, Object state) +382 System.Web.Mvc.Async.WrappedAsyncResult1.Begin(AsyncCallback callback, Object state, Int32 timeout) +130
System.Web.Mvc.Controller.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +317
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.BeginExecute(RequestContext requestContext, AsyncCallback callback, Object state) +15
System.Web.Mvc.<>c__DisplayClass8.b__2(AsyncCallback asyncCallback, Object asyncState) +71
System.Web.Mvc.Async.WrappedAsyncResult`1.Begin(AsyncCallback callback, Object state, Int32 timeout) +130
System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +249
System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +50
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +16
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +301
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155