<script> tag fails for rss 2.0 files saved as somename.rdf

"Michael Vincent van Rantwijk, MultiZilla" <[email protected]> Thu, 15 Mar 2007 08:25:59 +0100

Newsgroups	gmane.comp.mozilla.devel.layout.xslt
Message-ID	<[email protected]>

The script tag inside my XLS is no longer triggered for .RDF (rss 2.0) 
files:

       <body>
         <xsl:apply-templates/>
         <script type="application/x-javascript">
           dump("\nexecute");
         </script>
       </body>

Works in: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) 
Gecko/20061101 SeaMonkey/1.1b
Fails in: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2) 
Gecko/20070222 SeaMonkey/1.1.1

Has something changed in this time frame?
Where (bug/file) should I look?

Thank you,
Michael