Due to https://pa.wikisource.org/wiki/ਮੀਡੀਆਵਿਕੀ:Common.js having the line
mw.loader.load('//pa.wikisource.org/w/index.php?title=User:Benipal_hardarshan/cleanup.js&action=raw&ctype=text/javascript');, https://pa.wikisource.org/wiki/User:Benipal_hardarshan/cleanup.js is loaded for anyone by default.
This means pa.wikisource.org always loads the following external resources:

• https://tools-static.wmflabs.org/meta/scripts/pathoschild.templatescript.js
• https://tools-static.wmflabs.org/meta/scripts/pathoschild.util.js