Comment 1 for bug 495177

Confirm and agree, the setup for using a web-proxy is not documented anywhere and it is not fully working either:

- Adding
   export http_proxy=http://XXXXX:8000
   export https_proxy=https://XXXXX:8000
   export no_proxy=localhost,127.0.0.1
in /etc/default/image-store-proxy and then "service image-store-proxy restart" makes the image store (tab "Store" in the admin web interface) work.

- Adding

http.proxyHost=XXXXXXX
http.proxyPort=8000
http.nonProxyHosts=localhost|127.0.0.1

https.proxyHost=XXXXXXX
https.proxyPort=8000
https.nonProxyHosts=localhost|127.0.0.1

in /etc/java-6-openjdk/net.properties should be enough for the java components to work IMHO, but it doesn't help, the Extras tab (which is fetched using the Google web toolkit) doen't get it.