[akyuu]

From https://primatology.xyz/sheriff/faqs:

> Does Sheriff block all JavaScript?

> No. Sheriff only blocks externally-loaded JavaScript. That is, JavaScript linked to from a webpage. JavaScript embedded into a webpage will not be blocked.

> Sheriff is built upon Apple's Safari Content Blocker technology, which only blocks externally-loaded resources, like JavaScript and Cookies.

[primatologyxyz]

The goal of Sheriff is to help users to protect their privacy on the web. Most, if not all, data-collection and privacy-invasive JavaScript is loaded, not only externally, but from a different domain (either a subdomain, or from a CDN), which Sheriff will successfully block.