Module=proxy disclosing JS code. Issue or no?

Hey, I’m just floating this but found some pest poking at what’s a publicly accessible page at ::

https://[matomo]/index.php?module=Proxy&action=getUmdJs&chunk=0&cb=8c20de0aab65f8cf32275957xxxxx

The domain itself doesn’t affiliate itself with matomo, and not sure how they got the chunk either… The code is nothing private so I’m not sure what gives here…

Has anyone seen this before please? Thank u