prohibiting previously mapped and unmapped characters

[Patrik Fältström]

On 2 dec 2006, at 03.39, Mark Davis wrote:

> An interesting one is
> $sum(7,18,-9.4).x42.com<http://$sum%287,18,-9.4%29.x42.com/>,
> which essentially takes everything in front of the x42 and  
> evaluates it. So
> all kinds of strange characters can be there.

This is a site by a friend of mine. He has experimented with all  
different kind of things regarding the HTTP protocol. Especially  
everything the implementations allow (as compared to the standards).

     paf