User custom filter: CSS selector "has()" does not work

[snio89]

Prerequisites

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• [O] I am running the latest version
• [O] I checked the documentation and found no answer
• [O] I checked to make sure that this issue has not already been filed

Issue Details

• AdGuard version:
  • 2.6.0
• Browser:
  • Samsung Internet
• Device model:
  • Galaxy Note 10
• Operating system and version:
  • Android 10

I am not sure this is a bug or a feature that is not yet adapted in the Adguard Content Blocker. CSS selector ':has(selector)' and '[-ext-has="selector"]' do not work in Adguard Content Blocker.

Those filters are listed in the Adguard custom filter guidelines. https://kb.adguard.com/en/general/how-to-create-your-own-ad-filters#extended-css-selectors-1

Expected Behavior

1. Write own filter as follows: google.com##div:has(img[alt="Google"])
2. Access google.
3. Nothing shows (tested in PC browser with uBlock)

Actual Behavior

Filter with ":has()" selector is neglected. I've tried ##, #$#, #?#, :has(), and [-ext-has] but none of them worked.

[Alex-302]

Extended CSS, CSS and JS/Scriptlet rules cannot be used in Content Blocker.

[krystian3w]

Chrome 105 (I think Yandex updated Chromium engine enough) added support div:has(img[alt="Google"]), maybe use should be unlocked if app/plugin have something to disable use at all.

[ameshkov]

I guess we can allow these, but it should be done in https://github.com/AdguardTeam/FiltersCompiler