Facebooker talk - Feb 2009 - javascript_include_tag -- 500 internal server error

Hi,

I''m trying to use (in my view/layout) javascript_include_tag and it 
generates something like:

<script type="text/javascript" 
src="http://apps.facebook.com/fbml_static_get.php?src=%2Fcanvas_name%2Fjavascripts%2Ffacebooker.js%3F1234225416&appid=my_app_id&pv=1&sig=995d0e338609600ecbc28c3caf156f29&filetype=js"></script>

But when trying to fetch it Firebug shows that it gets an internal 
server error (500).

Anybody else run into this?

- Jacob