http://cocoon.zones.apache.org/daisy/cdocs/1201.html
502 Bad Gateway The upstream server is not responding. If you're trying to access a live Cocoon demo, it might be currently restarting, as it does twice a day. This takes some time as the demo is upgraded from our Subversion repository, and completely rebuilt. Please check back in 10 minutes, or inform dev (at) cocoon.apache.org if the problem persists.
