Open
Bug 2063991
Opened 2 months ago
Updated 22 days ago
Element-backed pseudo-elements fail to match within @scope
Categories
(Core :: CSS Parsing and Computation, defect, P3)
Core
CSS Parsing and Computation
Tracking
()
NEW
| Tracking | Status | |
|---|---|---|
| firefox156 | --- | affected |
People
(Reporter: jakea, Unassigned)
References
(Blocks 1 open bug)
Details
https://jsbin.com/gekajekizu/edit?html,css,output
Also impacts other pseudo-elements, like ::details-content, as reported here https://bsky.app/profile/berndderidder.nl/post/3mt22n2sh3k2c
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Comment 1•2 months ago
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Hmm, I think this only affects element-backed pseudo-elements (probably because they're in a different shadow tree).
E.g. ::before / ::after / ::file-selector-button work.
Severity: -- → S3
Priority: -- → P3
Summary: pseudo-elements fail to match within @scope → Element-backed pseudo-elements fail to match within @scope
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Comment 2•22 days ago
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This is a major show-stopper for @scope usage unfortunately... in real-world code having these pseudo-elements is very common. And @scope in particular is a feature that is very useful on "wide" parts of a codebase, for instance as a container around entire components.
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Description
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