Thread:Project:Support desk/Pages not loading correctly sometimes - Cache problem?/reply (2)

This problem (pages without styles applied) is normally a problem with Manual:load.php not returning data, timing-out or giving a 500 error.

I've reproduced the problem in your wiki (which happens randomly), and that's because this URL |mediawiki.legacy.commonPrint%2Cshared|mediawiki.special.changeslist|skins.vector&only=styles&skin=vector&* randomly returns it's contents as Content-Type: text/html or Content-Type: text/css.

CSS rules aren't processed on the browser if they're delivered as any other Content-Type different than text/css. This looks like a problem with your cache (Cloud-flare?).