Have been using WordPress multisite for quite some time, and eventually thought that it would be a good idea to improve security with using https for admin part.
It worked really good for main site, and subdomains for that site. However on other domains (using domain mapping plugin) it saved images in posts and pages with https instead of http, which unfortunately leads to a lot of broken images for normal users, which dont use https.
To be honest I'm not sure if this was an issue previous to 3.9.1. We activated https quite recently, and I never thought of testing all sites, but just a handful...
I haven't really digged that deep to find issue itself, and I don't know when I get the time. So, is this something that anyone else recognize?