public override Task Invoke(IOwinContext context)
        {
            Trace.WriteLine("Invoke IsPrivateFolderMiddleware");

            var path = FileSystem.MapPath(_options.BasePath, context.Request.Path.Value);

            if (path.Contains(@"\.") || path.Contains(@"\_") || path.Contains(@"\ssl\"))
            {
                return(StatusHandler.Handle403(context, Next));
            }

            return(Next.Invoke(context));
        }