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chore(deps-dev): bump happy-dom from 20.11.2 to 21.0.3 - #3561

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@dependabot dependabot Bot commented on behalf of github Oct 21, 2026 •

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Bumps happy-dom from 20.11.2 to 21.0.3.

Release notes

Sourced from happy-dom's releases.

v21.0.3

👷‍♂️ Patch fixes

  • Fixes security vulnerability where authorization header was forwarded when redirecting - By @​capricorn86

v21.0.2

👷‍♂️ Patch fixes

v21.0.1

👷‍♂️ Patch fixes

v21.0.0

💣 Breaking Changes

  • Disables CSS and IFrame loading by default to prevent server-side request forgery (SSRF) - By @​capricorn86
    • An attacker could embed <iframe> or <link rel="stylesheet"> elements in untrusted HTML to make Happy DOM send HTTP requests from the server to attacker-chosen URLs, including internal services. This could allow access to otherwise unreachable endpoints or trigger unintended actions, depending on the application and its network access.
    • The settings property disableCSSFileLoading has been deprecated
    • Added the new settings properties enableCSSFileLoading and enableIframePageLoading
    • If you don't believe that you are at risk, you can keep the same behavior as in <=v20.14.6 by sending in { enableCSSFileLoading: true, enableIframePageLoading: true } as broswer settings (e.g. new Window({ settings }));

v20.14.6

👷‍♂️ Patch fixes

v20.14.5

👷‍♂️ Patch fixes

v20.14.4

👷‍♂️ Patch fixes

  • End comments at the first comment end tag when it overlaps a comment start tag - By @​hampustagerud in task #2407

v20.14.3

👷‍♂️ Patch fixes

v20.14.2

👷‍♂️ Patch fixes

  • Fixes regression where not all CSS variables where resolved in getComputedStyle() - By @​klaesra in task #2344

v20.14.1

👷‍♂️ Patch fixes

v20.14.0

🎨 Features

v20.13.2

👷‍♂️ Patch fixes

... (truncated)

Commits
  • 875ef5c fix: Fixes security vulnerability where authorization header was forwarded wh...
  • 1f3ffdf fix: Fixes SSRF security vulnerability by doing a target-origin bypass in the...
  • f55c7e0 chore: Update security documentation (#2509)
  • 2b91e68 fix: Adds alias for enabling CSS and iframe loading in server-renderer (#2503)
  • 0a99c75 BREAKING CHANGE: Disables CSS and IFrame loading by default (#2502)
  • f21dbd7 fix: Fixes cookie scope forgery vulnerability (#2477)
  • 0d4cdbe fix: #2409 Preserve character references in comment data (#2410)
  • 9c920a4 fix: #2407 End comments at the first comment end tag when it overlaps a com...
  • 5fb1df3 fix: #2363 Avoids cloning all properties in CSSPropertyManager.toString() (...
  • de0a1e9 fix: #2344 Resolve every var() in a value, not only the first one (#2395)
  • Additional commits viewable in compare view

@dependabot dependabot Bot added the dependencies Pull requests that update a dependency file label Oct 21, 2026
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Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 20.11.2 to 21.0.3.
- [Release notes](https://github.com/capricorn86/happy-dom/releases)
- [Commits](capricorn86/happy-dom@v20.11.2...v21.0.3)

---
updated-dependencies:
- dependency-name: happy-dom
  dependency-version: 21.0.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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