Kubuntu 18.04.3 LTS
My Issue :
I am a long time Spotify user and recently I switched to Linux and because of the company policy we should use proxy to connect to the internet.
I tried HTTP proxy but it seems Spotify connection goes straight to the internet without using a proxy.
for an additional test, I even used socks proxy through ssh
ssh -D 1337 -q -C -N user@MyServerIP
and there was no connection go through ssh proxy.
I also checked the pref files in the Config directory and everything was look ok.
I tested both ways on a windows machine and they both worked fine without any problem so I assume the Linux version has a problem.
PS: my HTTP proxy is authenticated but the socks proxy was without any authentication
i hope someone can help to fix this issue.