[STORE] Session expired - what's your excuse now?

So this has been happening since... well, always. It was never fixed though it's quite annoying. Recently I wanted to get some runes before game, and again, it didn't work. So after reading this thread I tried reading this support article about session problems in store. As somebody has already pointed out, the article mostly tries to convince you, that your configuration/system is wrong. It's not in most cases.

I also tried visiting the store website from the links in aforementioned support article (Scroll down in the article. I'd share link, but they don't know what anchor is). This was the result:

I intentionally show the Firebug cookie tab so that you can see that my cookies are enabled.

So what's the excuse now? The store is only broken sometimes, so it's probably not my configuration.

Finally there is an unofficial patch that allows user to regain session by simply clicking the store button again. I haven't tried it, but maybe Riot well paid developers could inspire themselves by things other people can do free of charge.