While native Safari content blocker does not support scriptlets, they are very essential for holistic ad blocking capability.
Herein, Orion can use the approach of AdGuard. The supported rules are processed by Safari content blocker, whereas the advanced filters are injected by AdGuard directly into the webpage.
Scriptlet is a javascript function that provides extended capabilities for content blocking. Scriptlets are necessary because native Safari filters are very limited in scope and cannot block everything.
Both adguard and ublock origin relies heavily on the use of scriplets. The scriptlets supported by them are available in their respective repositories - https://github.com/AdguardTeam/Scriptlets and https://github.com/gorhill/uBlock/wiki/Resources-Library
Adguard filters, IMHO best filters there are currently, has significant number of scriptlets (eg. base, annoyances, etc.). They can be searched using +js.
Brave browser also supported uBO's scriptlets in its native adblock engine - https://github.com/brave/adblock-rust, https://github.com/brave/adblock-resources.
Adguard uses //scriptlet syntax whereas uBO and Brave use +js
Adguard has also published swift library that converts AdGuard rules to Safari content blocking rules
What blocklists would this allow Orion to use, by default, and what block lists should these replace?
I've noticed that Orion ships with extra lists and custom rules to achieve 100% on adblock tests.
AdGuard Base and AdGuard Tracking Protection filter are more than enough to achieve 100% on any adblock test.
Moreover, EasyList and EasyPrivacy lists, although popular, are not updated as quickly as they should be. This should give you an idea about the rate of activity and updates in adguard filters
The 2 filter lists I mentioned are optimized filters (smaller size, while trying to maximise blocking). With just these 2, in Brave + uBO, I am getting 86% blocking.
I forgot to mention mobile ads filter (optimised). With these 3 enabled, I am getting 95%.
If I add full version of these 3 lists (just remove _optimized from the url), I get 99% (ads-sg.tiktok.com not blocked).
Rules count:
In full version - 180,150 network filters ＋ 82,974 cosmetic filters
In optimized version - 132,915 network filters ＋ 42,571 cosmetic filters
Vlad This seems not to be the case?
I did not factor in NextDNS running in the background.
Vlad Happy to run 'optimized' lists, just please be specific what those lists are to achieve 100%?
Optimized lists may not always give 100% result. However, 3 full lists (list1, list2, list3) as shown above are alreadying blocking all except 1, for which I've already created an issue on github.
Update: Adguard refused to block ads-sg.tiktok.com since it is not related to ads.
It'll be very nice to achieve this kind of content blocking with the ability to manage filters and userscripts on ios.
edited
since the update to 1.3.18 (6) (WebKit 8620.2.4.10.7) scriplets in content blocker seem not to work.
The Adguard's filterlists that were present as selectable are now disappeared.
Is this intended or do I need to open a bug report?
