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Currently `adoptedStyleSheets` has a restriction on `CSSStyleSheets` that have the `constructed` flag set:
> The [set an indexed value](https://webidl.spec.whatwg.org/#observable-array-attribute-set-…
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### Basic info:
- **Node.js version:** v20.6.1
- **jsdom version:** 22.1.0
### Minimal reproduction case
```js
const { JSDOM } = require('jsdom');
new JSDOM(`
@container (min-wi…
zbigg updated
1 month ago
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## Request for Mozilla Position on an Emerging Web Specification
* Specification title: CSS Nesting
* Specification or proposal URL (if available): https://drafts.csswg.org/css-nesting-1/#nest…
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See https://bugzilla.mozilla.org/show_bug.cgi?id=1590837 / https://github.com/jquery/jquery/issues/4529.
In the following test-case:
```html
var result = document.getEleme…
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https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle
> set decls to a list of all longhand properties that are [supported CSS properties](https://drafts.csswg.org/cssom/#supported-css-proper…
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Currently there's no reliable way to get the small/large viewport dimensions.
There are some tricks in the wild for working with these values like inserting an element with something like `height:…
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We need an API to observe computed style changes.
One example use case is to update canvas rendering based on changes in computed styles of an element (f.e. `transform` values to determine where to…
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Currently there is no access to counter values, even with `getComputedStyle`. I'm trying to implement a system that allows cross-reference to specific elements in a list, and in order to do that I'm h…
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На React SPA проекта с SSR понадобилось подключить Яндекс Метрику. Следовал строго по инструкции.
В **App.js** сделал импорты:
```
import { YMInitializer } from 'react-yandex-metrika'
import ym…
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https://drafts.csswg.org/cssom/#css-rules defines how various rule types are serialized, but the entry for CSSPageRule just says "Need to define how [CSSPageRule](https://drafts.csswg.org/cssom/#csspa…