**Steps to replicate the issue** (include links if applicable):
* Call a Wikidata item
* Open the browser console
**What happens?**:
JS error is shown (with URL parameter &debug=true)
Uncaught TypeError: async.parallel is not a function
init https://www.wikidata.org/w/load.php?debug=1&lang=de&modules=ext.gadget.PrimarySources&only=scripts&skin=vector&version=ztntf:651
<anonymous> https://www.wikidata.org/w/load.php?debug=1&lang=de&modules=ext.gadget.PrimarySources&only=scripts&skin=vector&version=ztntf:675
jQuery 11
<anonymous> https://www.wikidata.org/w/load.php?debug=1&lang=de&modules=ext.gadget.PrimarySources&only=scripts&skin=vector&version=ztntf:126
This happens since this week. Maybe related to T343499 / https://gerrit.wikimedia.org/r/c/mediawiki/libs/Minify/+/948986/ ?
The gadget JS files were last edited in April 2021 [[ https://www.wikidata.org/w/index.php?title=MediaWiki:Gadget-PrimarySources.js&action=history | MediaWiki:Gadget-PrimarySources.js]] and 2015 [[https://www.wikidata.org/w/index.php?title=MediaWiki:Gadget-PrimarySources-async.js&action=history | MediaWiki:Gadget-PrimarySources-async.js ]]