Remove cassette.axd from URLs?

Is there any particular reason why "cassette.axd" has to be in all URLs generated by Cassette, and is there any way to change this?

From a security perspective, you shouldn't really expose what systems you are using on your server like this. In addition to it just adding extra length to URLs which should be neater.

This is one of two major things that is keeping me from using Cassette for my projects. (The other is the reliance on the antiquated dotless library for LESS support...)