1889177 - :host in Logical Combination with Non-Featureless Selectors Should Still Match the Featureless Element

Status: RESOLVED DUPLICATE of bug 1879349

(Core :: CSS Parsing and Computation, defect)

Description

[David Shin[:dshin]]

Attachment: Minimum Reproducible Case

Attached test case should display 2 1px black borders with 5px padding in between. In Firefox, it displays only one border.
Spec: "For example, the shadow host in a shadow tree is featureless, and can’t be matched by any pseudo-class except for :host and :host-context() (or combinations including those, such as :is(:host, :root)). "
From resolution here: https://github.com/w3c/csswg-drafts/issues/6420
Current behaviour however is a conscious decision, due to additional complexity.

Comment 1

[David Shin[:dshin]]

Parallel problem for @scope encountered in WPT

Comment 2

[Emilio Cobos Álvarez [:emilio]]

This is bug 1879349, right?