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@dependabot dependabot bot commented on behalf of github Feb 2, 2026

Bumps jsdom from 27.4.0 to 28.0.0.

Release notes

Sourced from jsdom's releases.

Version 28.0.0

  • Overhauled resource loading customization. See the new README for details on the new API.
  • Added MIME type sniffing to <iframe> and <frame> loads.
  • Regression: WebSockets are no longer correctly throttled to one connection per origin. This is a result of the bug at nodejs/undici#4743.
  • Fixed decoding of the query components of <a> and <area> elements in non-UTF-8 documents.
  • Fixed XMLHttpRequest fetches and WebSocket upgrade requests to be interceptable by the new customizable resource loading. (Except synchronous XMLHttpRequests.)
  • Fixed the referrer of a document to be set correctly when redirects are involved; it is now the initiating page, not the last hop in the redirect chain.
  • Fixed correctness bugs when passing ArrayBuffers or typed arrays to various APIs, where they would not correctly snapshot the data.
  • Fixed require("url").parse() deprecation warning when using WebSockets.
  • Fixed <iframe>, <frame>, and <img> (when canvas is installed) to fire load events, not error events, on non-OK HTTP responses.
  • Fixed many small issues in XMLHttpRequest.
Changelog

Sourced from jsdom's changelog.

28.0.0

  • Overhauled resource loading customization. See the new README for details on the new API.
  • Added MIME type sniffing to <iframe> and <frame> loads.
  • Regression: WebSockets are no longer correctly throttled to one connection per origin. This is a result of the bug at nodejs/undici#4743.
  • Fixed decoding of the query components of <a> and <area> elements in non-UTF-8 documents.
  • Fixed XMLHttpRequest fetches and WebSocket upgrade requests to be interceptable by the new customizable resource loading. (Except synchronous XMLHttpRequests.)
  • Fixed the referrer of a document to be set correctly when redirects are involved; it is now the initiating page, not the last hop in the redirect chain.
  • Fixed correctness bugs when passing ArrayBuffers or typed arrays to various APIs, where they would not correctly snapshot the data.
  • Fixed require("url").parse() deprecation warning when using WebSockets.
  • Fixed <iframe>, <frame>, and <img> (when canvas is installed) to fire load events, not error events, on non-OK HTTP responses.
  • Fixed many small issues in XMLHttpRequest.
Commits
  • 20f614d Version 28.0.0
  • 2b65c6a Replace the resource loader API
  • 638bd68 Decode <a> and <area> query strings using document's encoding
  • 457bd4b Add AGENTS.md (and CLAUDE.md)
  • bf1dc15 Mark header-values tests as fail-slow due to Node.js bug
  • 92f269e Update dependencies and dev dependencies
  • 7d6e667 Improve spec alignment of Headers and header type tests
  • 2c29aed Fix Windows-specific task kill timeouts
  • d941216 Add failing regression test for animation-name case-sensitivity
  • 56a833d Update style benchmark
  • Additional commits viewable in compare view

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Bumps [jsdom](https://github.com/jsdom/jsdom) from 27.4.0 to 28.0.0.
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/main/Changelog.md)
- [Commits](jsdom/jsdom@27.4.0...28.0.0)

---
updated-dependencies:
- dependency-name: jsdom
  dependency-version: 28.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update Javascript code labels Feb 2, 2026
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