Sta.sh ruleset is enabled but not DeviantArt, causing mixed content warnings

If you visit an https stash page that is using generated deviant art thumbnails, the thumbnails will fail to load as mixed content.

EG the following renders correct: http://sta.sh/0127ggexeju2 The following fails to render in both firefox and chrome: https://sta.sh/0127ggexeju2

The https version looks like this: https://imgur.com/gC9Qias Here is a paste of the errorcodes: http://pastebin.com/qjijAEbU

Sta.sh is enabled: https://www.eff.org/https-everywhere/atlas/domains/sta.sh.html But not DA: https://www.eff.org/https-everywhere/atlas/domains/deviantart.com.html

The former should be disabled or the latter enabled