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@dependabot dependabot bot commented on behalf of github Nov 1, 2025

Bumps jsdom from 26.1.0 to 27.1.0.

Release notes

Sourced from jsdom's releases.

Version 27.1.0

  • Improved CSS parsing by switching to @acemir/cssom, including support for nested selectors, nested declarations, layer statements, and improved at-rule validation. (acemir)
  • Fixed some selector cache invalidation issues where changes to attributes were not being picked up. (asamuzaK)
  • Fixed package.json "engines" field to reflect the new minimum Node.js versions needed to run jsdom, as noted in the changelog for v27.0.1.

Version 27.0.1

This release inadvertently raised the minimum Node.js version from v20.0.0 to v20.19.0+, v22.12.0+, v24.0.0+. (This happened via a dependency update.) This probably should have been a breaking (major) change, instead of happening in a patch version, since it prevents using earlier Node.js versions.

After further testing, we found that most of our development dependencies also require these versions, and so it's not feasible for the jsdom project to support earlier Node.js versions. (For example, our testing frameworks will not run on them.) If you need to use such earlier versions, or otherwise are working in an environment which gives related errors such as ERR_REQUIRE_ESM, then please stick with the v26.1.0 release of jsdom. (Noting, of course, that such versions are unsupported, and we will not respond to bug reports opened against them.)

Subsequent jsdom releases will explicitly require these minimum Node.js versions, and will have CI testing to ensure that the minimum version is not accidentally raised again.

Normal changelog:

  • Fixed some regressions in CSS selectors. Most such regression fixes were done in a minor update of a dependency, and thus available for all fresh installs of v27.0.0. However, one related to class="" attribute changes is only possible with a new version of jsdom. (asamuzaK)

Version 27.0.0

Changes since 26.1.0

  • Node.js v20 is now the minimum supported version.
  • Added a variety of event constructors, even though we do not implement their associated specifications or ever fire them: BeforeUnloadEvent, BlobEvent, DeviceMotionEvent (omitting requestPermission()), DeviceOrientationEvent (omitting requestPermission()), PointerEvent, PromiseRejectionEvent, and TransitionEvent.
  • Added movementX and movementY to MouseEvent. (These are from the Pointer Lock specification, the rest of which is not implemented.)
  • Added customElements.getName(). (mash-graz)
  • Updated the virtual console:
    • "jsdomError" events are now documented, with specific type properties and other properties that depend on the type.
    • sendTo() was renamed to forwardTo().
    • The jsdomErrors option to forwardTo() can be used to control which errors are sent to the Node.js console. This replaces the previous omitJSDOMErrors boolean option.
    • "jsdomError"s for failed XMLHttpRequest fetches are no longer emitted.
    • The values that are printed when forwarding "jsdomError"s to the Node.js console are streamlined.
  • Switched our CSS selector engine from nwsapi to @asamuzakjp/dom-selector, closing over 20 selector-related bugs.
  • Upgraded tough-cookie, which now considers URLs like http://localhost/ to be secure contexts (per the spec), and thus will return Secure-flagged cookies for such URLs. (colincasey)
  • Upgraded cssstyle, which brings along many improvements and fixes to the CSSStyleDeclaration object and its properties.
  • Updated the user agent stylesheet to be derived from the HTML Standard, instead of from an old revision of Chromium.
  • Changed element.click() to fire a PointerEvent instead of a MouseEvent.
  • Changed certain events to be passive by default.
  • Changed the <input> element's pattern="" attribute to use the v regular expression flag, instead of u.
  • Fixed many specification conformance issues with the Window object, including named properties and changing various data properties to accessor properties.
  • Fixed document.createEvent() to accept a more correct set of event names.
  • Fixed the ElementInternals accessibility getters and setters. (They were introduced in v23.1.0, but due to inadequate test coverage never actually worked.)
  • Fixed using Object.defineProperty() on certain objects, such as HTMLSelectElement instances.
  • Fixed jsdom.reconfigure({ url }) not updating document.baseURI or properties derived from it. (This regressed in v26.1.0.)
  • Fixed CSS system colors, as well as the initial, inherit, and unset keywords, to resolve correctly. (asamuzaK)
  • Fixed CSS display style resolution. (asamuzaK)

Changes since 27.0.0-beta.3

  • Upgraded cssstyle, which brings along various CSS parsing fixes.

Version 27.0.0-beta.3

  • Breaking change: upgraded tough-cookie, which now considers URLs like http://localhost/ to be secure contexts (per the spec), and thus will return Secure-flagged cookies for such URLs. (colincasey)

... (truncated)

Changelog

Sourced from jsdom's changelog.

27.1.0

  • Improved CSS parsing by switching to @acemir/cssom, including support for nested selectors, nested declarations, layer statements, and improved at-rule validation. (acemir)
  • Fixed some selector cache invalidation issues where changes to attributes were not being picked up. (asamuzaK)
  • Fixed package.json "engines" field to reflect the new minimum Node.js versions needed to run jsdom, as noted in the changelog for v27.0.1.

27.0.1

This release inadvertently raised the minimum Node.js version from v20.0.0 to v20.19.0+, v22.12.0+, v24.0.0+. (This happened via a dependency update.) This probably should have been a breaking (major) change, instead of happening in a patch version, since it prevents using earlier Node.js versions.

After further testing, we found that most of our development dependencies also require these versions, and so it's not feasible for the jsdom project to support earlier Node.js versions. (For example, our testing frameworks will not run on them.) If you need to use such earlier versions, or otherwise are working in an environment which gives related errors such as ERR_REQUIRE_ESM, then please stick with the v26.1.0 release of jsdom. (Noting, of course, that such versions are unsupported, and we will not respond to bug reports opened against them.)

Subsequent jsdom releases will explicitly require these minimum Node.js versions, and will have CI testing to ensure that the minimum version is not accidentally raised again.

Normal changelog:

  • Fixed some regressions in CSS selectors. Most such regression fixes were done in a minor update of a dependency, and thus available for all fresh installs of v27.0.0. However, one related to class="" attribute changes is only possible with a new version of jsdom. (asamuzaK)

27.0.0

Commits
  • adb999a Version 27.1.0
  • 91f40c4 Update dependencies and dev dependencies
  • ebad33c Note more strict minimum version requirement
  • bd02585 Swap rweb-cssom to @​acemir/cssom
  • f15c830 Add failing test for cssText setter
  • a833763 Clear domSelector cache on attribute change
  • 819ff52 Version 27.0.1
  • 23539d4 Call domSelector.clear() on class change
  • 894151b Add regression tests and update dependencies
  • aa2d8db Add a regression test for getComputedStyle() across shadow boundaries
  • Additional commits viewable in compare view

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@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update JavaScript code labels Nov 1, 2025
@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/src/bhs-web-angular-app/jsdom-27.1.0 branch from 035378d to 97b5e30 Compare November 2, 2025 16:55
Bumps [jsdom](https://github.com/jsdom/jsdom) from 26.1.0 to 27.1.0.
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/main/Changelog.md)
- [Commits](jsdom/jsdom@26.1.0...27.1.0)

---
updated-dependencies:
- dependency-name: jsdom
  dependency-version: 27.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/src/bhs-web-angular-app/jsdom-27.1.0 branch from 97b5e30 to b2f0af5 Compare November 3, 2025 17:16
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