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relnote(116): CSSPropertyRule and registerProperty() enabled in Fx nightly #27902

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merged 2 commits into from
Jul 12, 2023
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relnote(116): CSSPropertyRule and registerProperty() enabled in Fx nightly #27902

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72e97d9
relnote(116): CSSPropertyRule and registerProperty() enabled in Fx ni…
bsmth Jul 12, 2023
734b84d
Merge branch 'main' into 27756-css-properties-values-api
bsmth Jul 12, 2023
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42 changes: 42 additions & 0 deletions files/en-us/mozilla/firefox/experimental_features/index.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1239,6 +1239,48 @@ See [Firefox bug 1740530](https://bugzil.la/1740530) for more details.
</tbody>
</table>

#### CSS Properties and Values API

The [CSS Properties and Values API](/en-US/docs/Web/API/CSS_Properties_and_Values_API) allows developers to register custom CSS properties through JavaScript via [`registerProperty()`](/en-US/docs/Web/API/CSS/registerProperty_static) or in CSS using the [`@property`](/en-US/docs/Web/CSS/@property) at-rule.
Registering properties using these two methods allows for type checking, default values, and properties that do or do not inherit values from their parent elements.
See [Firefox bug 1840480](https://bugzil.la/1840480) for more details.

<table>
<thead>
<tr>
<th>Release channel</th>
<th>Version added</th>
<th>Enabled by default?</th>
</tr>
</thead>
<tbody>
<tr>
<th>Nightly</th>
<td>116</td>
<td>Yes</td>
</tr>
<tr>
<th>Developer Edition</th>
<td>116</td>
<td>No</td>
</tr>
<tr>
<th>Beta</th>
<td>116</td>
<td>No</td>
</tr>
<tr>
<th>Release</th>
<td>116</td>
<td>No</td>
</tr>
<tr>
<th>Preference name</th>
<td colspan="2"><code>layout.css.property-and-value-api.enabled</code></td>
</tr>
</tbody>
</table>

### Service Workers

#### Preloading of service worker resources on navigation
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4 changes: 3 additions & 1 deletion files/en-us/web/api/css_properties_and_values_api/index.md
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Expand Up @@ -2,7 +2,9 @@
title: CSS Properties and Values API
slug: Web/API/CSS_Properties_and_Values_API
page-type: web-api-overview
browser-compat: api.CSS.registerProperty
browser-compat:
- api.CSSPropertyRule
- api.CSS.registerProperty_static
---

{{DefaultAPISidebar("CSS Properties and Values API")}}
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2 changes: 1 addition & 1 deletion files/en-us/web/api/csspropertyrule/index.md
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Expand Up @@ -7,7 +7,7 @@ browser-compat: api.CSSPropertyRule

{{APIRef("CSS Properties and Values API")}}

The **`CSSPropertyRule`** interface of the {{domxref('CSS_Properties_and_Values_API','','',' ')}} represents a single CSS {{cssxref("@property")}} rule.
The **`CSSPropertyRule`** interface of the [CSS Properties and Values API](/en-US/docs/Web/API/CSS_Properties_and_Values_API) represents a single CSS {{cssxref("@property")}} rule.

{{InheritanceDiagram}}

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