ASP.NET CustomErrors ignores when a dot before slash is in url

Question

Hi all,

we have configured customerrors, so when we do this:

http://oururl.com/webDoesNotExist/test.aspx

the custom error page is presented,

but when we do this:

http://oururl.com/web./test.aspx

we get an 404 from asp.net runtime

any idea how we can redirect to custom error in this case?

greetings, Tim