Update jsdom 27.4.0 → 28.0.0 (major)

[depfu]

Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ jsdom (27.4.0 → 28.0.0) · Repo · Changelog

Release Notes

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.

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 41 commits:

• Version 28.0.0
• Replace the resource loader API
• Decode <a> and <area> query strings using document's encoding
• Add AGENTS.md (and CLAUDE.md)
• Mark header-values tests as fail-slow due to Node.js bug
• Update dependencies and dev dependencies
• Improve spec alignment of Headers and header type tests
• Fix Windows-specific task kill timeouts
• Add failing regression test for animation-name case-sensitivity
• Update style benchmark
• Update whatwg-mimetype, data-urls, and @exodus/bytes
• Improve fetch header infrastructure and use it in XHR
• Load non-2xx responses for frames and images
• Cleanup stray servers on test shutdown
• Remove require("url").parse() usage
• Remove Buffer usage elsewhere
• Add an encoding.js wrapper for UTF-8 handling
• Improve bytes-related internal names and documentation
• Remove Buffer usage in WebSocket
• Remove Buffer usage in XHR
• Remove Buffer usage in Blob/FileReader
• Minor README cleanups
• Disable flaky Range-mutations-dataChange.html
• Add regression test for getComputedStyle respecting !important priority
• Add regression test for getComputedStyle respecting CSS specificity
• Add regression test for calc() expressions with parentheses
• Add regression test for getComputedStyle with CSS variables on :root
• Add regression test for getComputedStyle not returning pseudo-class styles
• Add regression test for multiple background-images in getComputedStyle
• Add regression test for basic supports rule parsing
• Add regression test for insertRule with font-face rule
• Add regression test for class selector with escaped exclamation mark
• Add regression test for nested media queries
• Add regression test for nested media queries in layer with CSS Nesting
• Update dependencies and dev dependencies
• Enable characterSet normalization WPTs
• Add css/css-backgrounds to WPTs we run
• Add regression test for negative box inset CSS
• Remove workaround for now-fixed CSS parsing issue
• Add another setProperty() regression test
• Add style performance benchmark

↗️ data-urls (indirect, 6.0.0 → 7.0.0) · Repo

Release Notes

7.0.0

Node.js ^20.19.0 || ^22.12.0 || >=24.0.0 is now the minimum supported version.

6.0.1

This release contains dependency updates which should not impact users of the package.

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 6 commits:

• 7.0.0
• Update dependencies and dev dependencies
• 6.0.1
• Various modernizations
• Improve README
• Update dependencies and dev dependencies

↗️ lru-cache (indirect, 11.2.4 → 11.2.5) · Repo · Changelog

Commits

See the full diff on Github. The new version differs by 4 commits:

• 11.2.5
• Preserve fetch promises working in the background
• doc: guidance re mocking timers for testing TTL
• fix git repo url

↗️ webidl-conversions (indirect, 8.0.0 → 8.0.1) · Repo

Release Notes

8.0.1

• Sped up and simplified ByteString and USVString conversions. (@ChALkeR, #54)

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 6 commits:

• 8.0.1
• Improve README
• Automate publishing to npm
• Update dev dependencies
• Remove now-outdated comment
• Speed up and simplify ByteString and USVString conversions

↗️ whatwg-mimetype (indirect, 4.0.0 → 5.0.0) · Repo

Release Notes

5.0.0

Node.js v20 is now the minimum supported version.

The MIMEType class has moved from being the default export to being a named export.

Added MIME sniffing functionality, via the computedMIMEType export.

Removed the raw parsing/serialization APIs.

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 6 commits:

• 5.0.0
• Get to 100% test coverage
• Modernize the get-latest-platform-tests script
• Add MIME type sniffing functionality
• Modernize the project
• Fix documented paths to the raw API modules

↗️ whatwg-url (indirect, 15.1.0 → 16.0.0) · Repo

Release Notes

16.0.0

Breaking change: now requires Node.js versions ^20.19.0 || ^22.12.0 || >=24.0.0.

Added encoding support for query string parsing, via the new encoding options to parseURL() and basicURLParse(). (The URL API is not affected, as it always uses UTF-8.) Thanks to @ChALkeR and his excellent @exodus/bytes package for providing the foundation!

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 7 commits:

• 16.0.0
• Update test and spec reference commits
• Migrate from benchmark.js to tinybench
• Specify explicit minimum Node.js version
• Update dependencies and dev dependencies
• Add encoding support for query string parsing
• Update dev dependencies and auto-publish

🆕 undici (added, 7.21.0)

🗑️ ws (removed)

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