- Baseline:
- Newly
- Functional:
- Progressing
- Usage:
- Cross-Context
Global @scope cannot cross the shadow boundary to apply to shadow elements. Within shadow DOM, @scope works with :host and :host() as the scoping root, and implicit @scope (without a boundary) correctly scopes to the shadow root. Note that ::slotted() within @scope lacks test coverage and may have inconsistent support.
Ranked caution due to limited real-world testing with shadow DOM. While WPT tests pass and Firefox 131+ completes cross-browser support, some edge cases like ::slotted() in @scope remain unverified.
Shadow DOM Related Issues
:scope resolves to :host in shadow trees
Resolved to work, but browser support is lagging and WPT expect failure
Stable:scope and featureless elements
Resolved that :scope is a valid ref to :host within @scope (:host), available cross-browser
Stable| Web Platform Test | Chrome 147 | Edge 146 | Firefox 149 | Safari 26.4 |
|---|---|---|---|---|
| n |