Some relevant info:
Here's the Gerrit change implementing the user preference - https://gerrit.wikimedia.org/r/47089
Also, $wgSecureLogin was deployed once to WMF wikis, but apparently a bug occurred that was not present on my test environment. Once we figure out what the source of that issue is, at the very least we can take the first step and have secure login.
*-- * *Tyler Romeo* Stevens Institute of Technology, Class of 2015 Major in Computer Science www.whizkidztech.com | tylerromeo@gmail.com