The ‘Forums’ link under the ‘Community’ dropdown at the top of http://rockstor.com/ points to this forum on http which then times for new visitors because you guys don’t have any http server there at all, only https.
Now, none of you see this behavior because you’ve visited the working https version at least once and received the Strict-Transport-Security header that comes with it. This header basically tells the browser to automatically switch all http links to https… but you must have already visited the https site once for the browser to know about it. So it’s kind of a catch 22.
You can replicate the broken behavior by using a private/incognito browsing window.
The simplest fix is probably to just update the link on rockstor.com… but it may also be worth the trouble to set up a http server that automatically redirects to https.