https://bugs.winehq.org/show_bug.cgi?id=43605
--- Comment #3 from raydongf@gmail.com --- (In reply to Fabian Maurer from comment #1)
How exactly do I test that issue?
Hi, I've attached a certificate that should show as invalid once you click "details" (can't remember the name).
It will say that the certificate is invalid, but it'll still install. However, even if it's installed, Wine IE won't connect to it without the warning/error message.
This is what it looks like on real Windows: http://i.imgur.com/fbzFl1Z.png
You can also try to access https://ssigames.co - it should also throw an error.