Linux: patcher and game client doesn't connect when proxy env vars set

Title: Linux: patcher and game client doesn't connect when proxy env vars set
Reproduction Rate: 100%
Blocker? yes
Details: When proxy is set in Ubuntu the launcher and client tries to connect through proxy, this result in "can't connect". Direct connection was possible, so there was no need to connect through proxy. This does not apply to all connections from launcher or client (i guess only http / https calls use proxy). You can't download/patch the game, nor you can play online when proxy vars set. unset http_proxy https_proxy ftp_proxy no_proxy NO_PROXY prior starting launcher or client "solve" the problem.
Steps to Reproduce: 1. set proxy env vars or set proxy in system settings 2. start launcher or go online with client
User Specs: Ubuntu 16.04 (with gnome desktop and gdm)