Favicon.ico generates HTTP 500 when using Azure Blob Storage for uploads

[xavierdecoster]

3 issues:

• it doesn't pick up the favicon.ico in my {Theme}\Content\Images folder
• it doesn't pick up the favicon.ico in the Content\Images folder
• a blob container has to be lower case, so _C_ontent will never work

Here's the stacktrace:

System.Web.HttpException
'http:/*.blob.core.windows.net/Content/Images/favicon.ico' is not a valid virtual path.

System.Web.HttpException (0x80004005): 'http:/*.blob.core.windows.net/Content/Images/favicon.ico' is not a valid virtual path.
at System.Web.Util.UrlPath.CheckValidVirtualPath(String path)
at System.Web.Util.UrlPath.Combine(String appPath, String basepath, String relative)
at System.Web.VirtualPath.Combine(VirtualPath relativePath)
at System.Web.HttpRequest.MapPath(VirtualPath virtualPath, VirtualPath baseVirtualDir, Boolean allowCrossAppMapping)
at System.Web.HttpServerUtility.MapPath(String path)
at System.Web.HttpServerUtilityWrapper.MapPath(String path)
at FunnelWeb.Web.Controllers.ResourceController.RenderWhileReplacingTokenWith(String fileToRender, String contentType, String token, String replacement)
at FunnelWeb.Web.Controllers.ResourceController.RenderUploadedFileIfExists(String fileToRender, String contentType)
at FunnelWeb.Web.Controllers.ResourceController.Render(String fileName, String fileName2, String contentType)
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
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.Async.AsyncControllerActionInvoker.<>c__DisplayClass42.b__41()
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8´1.b__7(IAsyncResult _)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult´1.End()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.b__33()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.b__36(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult´1.End()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.b__20()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.b__22(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult´1.End()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
at System.Web.Mvc.Controller.<>c__DisplayClass1d.b__18(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.b__3(IAsyncResult ar)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult´1.End()
at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.b__3(IAsyncResult ar)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult´1.End()
at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.b__3(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.b__3(IAsyncResult ar)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult´1.End()
at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

[JakeGinnivan]

Interesting, good find.

How did you get that to throw, I can kinda see why it would but cant actually repro. Any additional steps would be handy

[xavierdecoster]

I just ran Install-Package Elmah and enabled Azure Web sites monitoring to find out :)
It's not throwing in your face, but it's logged and generating server errors behind the scenes.