possible error in validator

I noticed, as talking with a person on CSS irc EFNet..

When you have an xhtml 1.0 strict dtd document, and you
self-close a script tag. ie: <script /> it will work in FF, but
it will not render in the site in IE. This syntax is INCORRECT
obviosuly but the validator does not say there is an error.

-Jesse
LostSeed.com