When I try to register a new online account the authentication screen just hangs and finally ends in "An error occured while loading the authenication page".
I have tried to do this both at work (where it hangs) and at home, where it works perfectly. The difference is that at work we have a proxy.
I have tried to configure the proxy in the system and "apply system wide" but the authentication still hangs on 'loading' animation.
So the question is, how do I configure a proxy for the authentication in online accounts dialog?