If found this in the head tags of the Anonymous Registration template:
^Extras;yui/build/yahoo-dom-event/yahoo-dom-event.js
I think that's a bug. I know that using / macro like that can cause problems, for example ^/;folder should be ^/(folder);
So I figure it's the same story for the Extras macro, right?
^Extras(yui/build/yahoo-dom-event/yahoo-dom-event.js);
Found in 7.7.32 stable, confirmed in 7.8.13 beta.
Thanks,
Rogier