I just realized that edge ruby (1.2.2) breaks my routes. :id does not
include periods (".") any more, in favour of allowing :id.:format.
How can I create the old behevior, i.e. a route, so that “/controller/
action/abc.jpg” returns “abc.jpg” in a single argument (:id)?
“/:controller/:action/:id” does not work as expected and returns :id =