Chromium uses auto_proxy variable with .pac URL. Maybe some other application also follows the same scheme.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libproxy in Ubuntu. https://bugs.launchpad.net/bugs/1175479 Title: Using PAC file does not set http_proxy env variable Status in “libproxy” package in Ubuntu: New Bug description: I have a moderately complicated (66 line) PAC file, configured in the Network Settings applet using the automatic method with a HTTP URL. I've seen the same/similar behaviour on previous versions of Ubuntu. This doesn't set the http_proxy environment variable, so I am unable to access the internet as all applications try to connect directly. I'm attaching an obfuscated version of the PAC file, and I'm keen to help debug this issue. I've worked around the problem to gain internet access by setting the proxy manually, but this doesn't set up the exceptions specified by the PAC. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: libproxy1 0.4.11-0ubuntu1 ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8 Uname: Linux 3.8.0-19-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 Date: Thu May 2 07:55:08 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2012-04-27 (369 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328) MarkForUpload: True SourcePackage: libproxy UpgradeStatus: Upgraded to raring on 2013-04-26 (5 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libproxy/+bug/1175479/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp