In .NET Framework 4 url checking – request validation – is different from .Net 2.0. This is the error you will see when you hit this: Server Error in ‘/’ Application. A potentially dangerous Request.Path value was detected from the client Description: An unhandled exception occurred during the execution of the current web request. Please… Continue reading How to remove characters to avoid .NET Request Validation Error (A potentially dangerous Request.Path value was detected from the client)