I've noticed that JavaScript is broken at cswiki. Nearly every loading some part of JavaScript (from gadgets, site JS, personal JS or even the system) isn't loaded which is making really big problems. For example VisualEditor can't be turned on, the same for new VisualEditor-MediaWiki-2017WikitextEditor (sometimes the links are loaded correctly but the editor can't be turned on, so I must change the URL manually), editmenu isn't shown, special chars can't be inserted via https://www.mediawiki.org/wiki/MediaWiki:Edittools etc etc.

This is UBN as it breaks nearly every editing function. Fix this ASAP please. Don't know if this can be related to the DC switch.