In my case, it's ignoring a file:// based pac, which looks to be intentional:
https://bugs.chromium.org/p/chromium/issues/detail?id=839566#c7 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1825983 Title: chromium-browser ignores system proxy settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1825983/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs