Sending this
on to wikitech-l so the devs can comment on it.
Replied on commons-l and fixed for default MediaWiki installations in
r39203.
What did you fix? Nothing on the Wikimedia servers, right? Because I have now
confirmed, that the applet can be made into originating from commons using
Special:FilePath and it can connect back to commons (that involved uploading
a new version of my gifar).
http://toolserver.org/~dschwen/test.html
(the second applet loads user.gif from
commons.wikimedia.org)