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chore(deps-dev): bump jsdom from 27.2.0 to 29.1.1#13790

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chore(deps-dev): bump jsdom from 27.2.0 to 29.1.1#13790
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Bumps jsdom from 27.2.0 to 29.1.1.

Release notes

Sourced from jsdom's releases.

v29.1.1

  • Fixed 'border-radius' computed style serialization. (@​asamuzaK)
  • Fixed computed style computation when using 'background-origin' and 'background-clip' CSS properties. (@​asamuzaK)
  • Significantly optimized initial calls to getComputedStyle(), before the cache warms up. (@​asamuzaK)

v29.1.0

  • Added basic support for the ratio CSS type. (@​asamuzaK)
  • Fixed getComputedStyle() sometimes returning outdated results after CSS was modified. (@​asamuzaK)

v29.0.2

  • Significantly improved and sped up getComputedStyle(). Computed value rules are now applied across a broader set of properties, and include fixes related to inheritance, defaulting keywords, custom properties, and color-related values such as currentcolor and system colors. (@​asamuzaK)
  • Fixed CSS 'background' and 'border' shorthand parsing. (@​asamuzaK)

v29.0.1

  • Fixed CSS parsing of 'border', 'background', and their sub-shorthands containing keywords or var(). (@​asamuzaK)
  • Fixed getComputedStyle() to return a more functional CSSStyleDeclaration object, including indexed access support, which regressed in v29.0.0.

v29.0.0

Breaking changes:

  • Node.js v22.13.0+ is now the minimum supported v22 version (was v22.12.0+).

Other changes:

  • Overhauled the CSSOM implementation, replacing the @acemir/cssom and cssstyle dependencies with fresh internal implementations built on webidl2js wrappers and the css-tree parser. Serialization, parsing, and API behavior is improved in various ways, especially around edge cases.
  • Added CSSCounterStyleRule and CSSNamespaceRule to jsdom Windows.
  • Added cssMediaRule.matches and cssSupportsRule.matches getters.
  • Added proper media query parsing in MediaList, using css-tree instead of naive comma-splitting. Invalid queries become "not all" per spec.
  • Added cssKeyframeRule.keyText getter/setter validation.
  • Added cssStyleRule.selectorText setter validation: invalid selectors are now rejected.
  • Added styleSheet.ownerNode, styleSheet.href, and styleSheet.title.
  • Added bad port blocking per the fetch specification, preventing fetches to commonly-abused ports.
  • Improved Document initialization performance by lazily initializing the CSS selector engine, avoiding ~0.5 ms of overhead per Document. (@​thypon)
  • Fixed a memory leak when stylesheets were removed from the document.
  • Fixed CSSStyleDeclaration modifications to properly trigger custom element reactions.
  • Fixed nested @media rule parsing.
  • Fixed CSSStyleSheet's "disallow modification" flag not being checked in all mutation methods.
  • Fixed XMLHttpRequest's response getter returning parsed JSON during the LOADING state instead of null.
  • Fixed getComputedStyle() crashing in XHTML documents when stylesheets contained at-rules such as @page or @font-face.
  • Fixed a potential hang in synchronous XMLHttpRequest caused by a race condition with the worker thread's idle timeout.

v28.1.0

  • Added blob.text(), blob.arrayBuffer(), and blob.bytes() methods.
  • Improved getComputedStyle() to account for CSS specificity when multiple rules apply. (@​asamuzaK)
  • Improved synchronous XMLHttpRequest performance by using a persistent worker thread, avoiding ~400ms of setup overhead on every synchronous request after the first one.
  • Improved performance of node.getRootNode(), node.isConnected, and event.dispatchEvent() by caching the root node of document-connected trees.
  • Fixed getComputedStyle() to correctly handle !important priority. (@​asamuzaK)
  • Fixed document.getElementById() to return the first element in tree order when multiple elements share the same ID.
  • Fixed <svg> elements to no longer incorrectly proxy event handlers to the Window.
  • Fixed FileReader event timing and fileReader.result state to more closely follow the spec.

... (truncated)

Commits
  • 9b9ea7e 29.1.1
  • 07efb78 Optimize computed style comparison
  • 5f66329 Fix background-origin/background-clip in background shorthand
  • ad8af77 Fix border shorthand handling
  • 5a3e88e 29.1.0
  • 73db204 Update dependencies and dev dependencies
  • a7168a5 Support ratio CSS unit type
  • 15346e0 Fix style cache invalidation
  • 2a1e2cd 29.0.2
  • 4097d66 Resolve computed CSS values lazily in CSSStyleDeclaration
  • Additional commits viewable in compare view
Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for jsdom since your current version.

Install script changes

This version modifies prepare script that runs during installation. Review the package contents before updating.


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@dependabot
chore(deps-dev): bump jsdom from 27.2.0 to 29.1.1
571ebac 
Bumps [jsdom](https://github.com/jsdom/jsdom) from 27.2.0 to 29.1.1.
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Commits](jsdom/jsdom@v27.2.0...v29.1.1)

---
updated-dependencies:
- dependency-name: jsdom
  dependency-version: 29.1.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels May 18, 2026
@update-docs

update-docs Bot commented May 18, 2026

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Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

DeepDiver1975
DeepDiver1975 reviewed Jun 26, 2026
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Thanks @dependabot. Reviewed as maintainer.

Scope: dev-dependency bump of jsdom (the test DOM environment) from 27.2.0 to 29.1.1 — a major bump spanning two majors (27 → 29). Only package.json / pnpm-lock.yaml change; no production code is affected.

Concerns from the upstream release notes (v29.0.0):

  • The CSSOM implementation was overhauled (the @acemir/cssom + cssstyle deps were replaced with fresh internal implementations on css-tree). Serialization/parsing/getComputedStyle() behavior changed in various edge cases — this is the most likely source of unit-test breakage for a DOM-heavy suite.
  • New minimum Node: v22.13.0+ for the v22 line.
  • Bad-port blocking was added per the fetch spec (could affect tests that fetch unusual ports).
  • Dependabot flags a modified prepare install script — worth noting but expected for jsdom.

The real gate is the test suite, and it is currently red:

  • build — failing
  • check-tests-passed — failing
  • branch is CONFLICTING (DIRTY) — needs a rebase against the base branch.

So this cannot go in as-is. Please @dependabot rebase to resolve the conflict, and the failing build / unit-test jobs need to be investigated — given the jsdom CSSOM overhaul, the failures may well be real test breakage introduced by the major bump rather than flakes.

Changelog: n/a — dev-only dependency bump, no user-facing change, no changelog fragment required.

Not approving while CI is red and the branch has conflicts. Once it is rebased and all required checks are green, this can be re-reviewed.

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