Good Evening from Germany,
I just stumbled across the new forum and I noticed that there’s an SSL error popping up, when accessing the board via https.
You can see the error either in the attached screenshot or on SSL Server Test: forum.matomo.org (Powered by Qualys SSL Labs) (“Chain issues Incomplete, Extra certs”)
It seems that the certificate chain is not correctly implemented. I’m using Chrome 63.0.3239.132 on Windows 10 x64.