Using Episerver.Forms 4.24.1 and episerver.CMS 11.10.4 (had same problem back in time when started with Forms 4.15.1 and CMS 11.4.3)
Our intranet site is mostly giving "error 500: Internal Server Error" when posting a form.
Error in log shows:
ERROR EPiServer.Global: Unhandled exception in ASP.NET
EPiServer.Core.EPiServerException: ContentReference: Input string was not in a correct format.
at EPiServer.Core.ContentReference.Parse(String s)
at EPiServer.Core.ContentReference..ctor(String complexReference)
at EPiServer.Forms.Core.Internal.DataSubmissionService.GetValidatableElementsData(NameValueCollection validationData, Submission submissionDataFullForm)
at EPiServer.Forms.Core.Internal.DataSubmissionService.PerformDataSubmit(NameValueCollection rawSubmittedData, HttpContextBase httpContext, ControllerBase controller)
at EPiServer.Forms.Controllers.DataSubmitController.Submit()
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
at System.Web.Mvc.Controller.ExecuteCore()
at System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext)
at EPiServer.Forms.Controllers.FormsMvcHandler.ProcessController(IController controller)
at EPiServer.Forms.Controllers.FormsMvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Our intranet is using windows authentication, and users is automatically authenticated.
Web.config contains: <authentication mode="Windows">
IIS is set up with Authentication: "Windows Authentication" and "Anonymous Authentication" enabled
Access rights is set up like this
Have a guest group (ip criterion) that can access the site without login, an other site on server whith the IP is getting RSS feed from this site.
The strange is that a way around the error is (only sometimes) refresh the page by puttig cursor in address line and press enter. Refreshing by pressing F5 or refresh icon does not work.
From time to time we also get following error in logg, and the same "error 500: Internal Server Error" on page
ERROR EPiServer.Forms.Internal.Security.DefaultAntiForgeryValidator: Failed to validate the anti-forgery token
System.Web.Mvc.HttpAntiForgeryException (0x80004005): The provided anti-forgery token was meant for user "DOMAINNAME\username", but the current user is "".
at System.Web.Helpers.AntiXsrf.TokenValidator.ValidateTokens(HttpContextBase httpContext, IIdentity identity, AntiForgeryToken sessionToken, AntiForgeryToken fieldToken)
at System.Web.Helpers.AntiXsrf.AntiForgeryWorker.Validate(HttpContextBase httpContext, String cookieToken, String formToken)
at EPiServer.Forms.Internal.Security.DefaultAntiForgeryValidator.Validate(HttpContextBase httpContext)
and at the same time showing the icon for entering editmode on page.