1) Visit https://translatewiki.net/wiki/Project:About (HTTPS)
2) Purge it
3) Check http://translatewiki.net/wiki/Project:About source
Observed: some hotlinks of Commons files are over HTTPS. (It used to be the opposite, but it seems I can't reproduce by purging on HTTP...)
Expected: $wgUseInstantCommons includes protocol-relative resources and doesn't add insecure content to secure pages.
On closer inspection this is even weirder, because some resources are protocol-relative and some are not:
<img alt="Torchlight kopete.png" src="https://upload.wikimedia.org/wikipedia/commons/5/57/Torchlight_kopete.png" width="135" height="135" />
but
<img alt="P economy blue.png" src="/w/images/thumb/1/1a/P_economy_blue.png/135px-P_economy_blue.png" width="135" height="124" srcset="https://upload.wikimedia.org/wikipedia/commons/1/1a/P_economy_blue.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/1/1a/P_economy_blue.png 2x" />
(I've no idea what "srcset" is).
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**Version**: 1.22.0
**Severity**: major
**URL**: https://translatewiki.net/wiki/Thread:Support/Files_from_Commons_loading_over_HTTP
**See Also**:
https://bugzilla.wikimedia.org/show_bug.cgi?id=32219