DrivingThatTrain: cryptograss/rabbithole#35, as GitHub has it

2026-11-11T03:06:33Z

cryptograss/rabbithole#35, as GitHub has it

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{{PR
|repo=rabbithole
|number=35
|title=Bump happy-dom from 15.11.7 to 21.0.4
|url=https://github.com/cryptograss/rabbithole/pull/35
|author=dependabot[bot]
|state=open
|base=main
|branch=dependabot/npm_and_yarn/happy-dom-21.0.4
|opened=2026-11-11 03:05:54
|pushed=2026-11-11 03:05:52
|merged=
|closed=
|worked_on_by=
|moods=
|deploy=
}}
<pre class="pr-body">Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 15.11.7 to 21.0.4.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/capricorn86/happy-dom/releases">happy-dom's releases</a>.</em></p>
<blockquote>
<h2>v21.0.4</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Fixed a code injection vulnerability in the ESM compiler - By <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong></li>
<li>Fixed cross-origin isolation so opaque-origin <code>data:</code> iframes cannot access their parent or top window - By <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong></li>
</ul>
<h2>v21.0.3</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Fixes security vulnerability where authorization header was forwarded when redirecting - By <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong></li>
</ul>
<h2>v21.0.2</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Fixes SSRF security vulnerability by doing a target-origin bypass in the proxy server in <a href="https://github.com/capricorn86/happy-dom/wiki/Server-Renderer">@happy-dom/server-renderer</a> - By <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong></li>
</ul>
<h2>v21.0.1</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Adds aliases <code>--css</code> and <code>--iframe</code> for enabling CSS and iframe loading to <a href="https://github.com/capricorn86/happy-dom/wiki/Server-Renderer">@happy-dom/server-renderer</a> - By <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong></li>
</ul>
<h2>v21.0.0</h2>
<h3>:bomb: Breaking Changes</h3>
<ul>
<li>Disables CSS and IFrame loading by default to prevent <a href="https://en.wikipedia.org/wiki/Server-side_request_forgery">server-side request forgery (SSRF)</a> - By <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong>
<ul>
<li>An attacker could embed <code>&lt;iframe&gt;</code> or <code>&lt;link rel=&quot;stylesheet&quot;&gt;</code> 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.</li>
<li>The settings property <code>disableCSSFileLoading</code> has been deprecated</li>
<li>Added the new settings properties <a href="https://github.com/capricorn86/happy-dom/wiki/IBrowserSettings#properties">enableCSSFileLoading</a> and <a href="https://github.com/capricorn86/happy-dom/wiki/IBrowserSettings#properties">enableIframePageLoading</a></li>
<li>If you don't believe that you are at risk, you can keep the same behavior as in <code>&lt;=v20.14.6</code> by sending in <code>{ enableCSSFileLoading: true, enableIframePageLoading: true }</code> as <a href="https://github.com/capricorn86/happy-dom/wiki/IOptionalBrowserSettings">broswer settings</a> (e.g. <code>new Window({ settings })</code>);</li>
</ul>
</li>
</ul>
<h2>v20.14.6</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Fixes cookie scope forgery vulnerability - By <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong></li>
</ul>
<h2>v20.14.5</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Preserve character references in comment data - By <strong><a href="https://github.com/hampustagerud"><code>@hampustagerud</code></a></strong> in task <a href="https://redirect.github.com/capricorn86/happy-dom/issues/2409">#2409</a></li>
</ul>
<h2>v20.14.4</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>End comments at the first comment end tag when it overlaps a comment start tag - By <strong><a href="https://github.com/hampustagerud"><code>@hampustagerud</code></a></strong> in task <a href="https://redirect.github.com/capricorn86/happy-dom/issues/2407">#2407</a></li>
</ul>
<h2>v20.14.3</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Avoids cloning all properties in CSSPropertyManager.toString - By <strong><a href="https://github.com/erictheswift"><code>@erictheswift</code></a></strong> in task <a href="https://redirect.github.com/capricorn86/happy-dom/issues/2363">#2363</a></li>
</ul>
<h2>v20.14.2</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Fixes regression where not all CSS variables where resolved in <code>getComputedStyle()</code> - By <strong><a href="https://github.com/klaesra"><code>@klaesra</code></a></strong> in task <a href="https://redirect.github.com/capricorn86/happy-dom/issues/2344">#2344</a></li>
</ul>
<h2>v20.14.1</h2>
<h3>:construction_worker_man: Patch fixes</h3>
<ul>
<li>Invalidate the computed style cache for the whole subtree - By <strong><a href="https://github.com/matmannion"><code>@matmannion</code></a></strong> and <strong><a href="https://github.com/capricorn86"><code>@capricorn86</code></a></strong> in task <a href="https://redirect.github.com/capricorn86/happy-dom/issues/2366">#2366</a></li>
</ul>
<h2>v20.14.0</h2>

</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/capricorn86/happy-dom/commit/fd163520b74d9fa146be91f7b4e4f46d6cccbe13"><code>fd16352</code></a> fix: Fixed a code injection vulnerability in the ESM compiler (<a href="https://redirect.github.com/capricorn86/happy-dom/issues/2537">#2537</a>)</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/75ab0fb732faf7b801cf644d4338b663f1a8cae7"><code>75ab0fb</code></a> fix: Fixed cross-origin isolation so opaque-origin data: iframes cannot acces...</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/875ef5c647b336cc933c82426c9d780a5aab84f9"><code>875ef5c</code></a> fix: Fixes security vulnerability where authorization header was forwarded wh...</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/1f3ffdf634231361de1a2acb629b4fe8ee1bd85d"><code>1f3ffdf</code></a> fix: Fixes SSRF security vulnerability by doing a target-origin bypass in the...</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/f55c7e0852a3ecf33252d4955f260a5246f3f63e"><code>f55c7e0</code></a> chore: Update security documentation (<a href="https://redirect.github.com/capricorn86/happy-dom/issues/2509">#2509</a>)</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/2b91e68e1748f2a1d597f650594a5c2f95b2a011"><code>2b91e68</code></a> fix: Adds alias for enabling CSS and iframe loading in server-renderer (<a href="https://redirect.github.com/capricorn86/happy-dom/issues/2503">#2503</a>)</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/0a99c7525a1d0043e3182843ae33466ab7b19e74"><code>0a99c75</code></a> BREAKING CHANGE: Disables CSS and IFrame loading by default (<a href="https://redirect.github.com/capricorn86/happy-dom/issues/2502">#2502</a>)</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/f21dbd7d0a0c63cdd41954ba5d0f05def4e0f2b3"><code>f21dbd7</code></a> fix: Fixes cookie scope forgery vulnerability (<a href="https://redirect.github.com/capricorn86/happy-dom/issues/2477">#2477</a>)</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/0d4cdbe7442af49d16b49ddf1acf7cc9684ed318"><code>0d4cdbe</code></a> fix: <a href="https://redirect.github.com/capricorn86/happy-dom/issues/2409">#2409</a> Preserve character references in comment data (<a href="https://redirect.github.com/capricorn86/happy-dom/issues/2410">#2410</a>)</li>
<li><a href="https://github.com/capricorn86/happy-dom/commit/9c920a414a0e27a9c8f279a2be59beaaefd754e0"><code>9c920a4</code></a> fix: <a href="https://redirect.github.com/capricorn86/happy-dom/issues/2407">#2407</a> End comments at the first comment end tag when it overlaps a com...</li>
<li>Additional commits viewable in <a href="https://github.com/capricorn86/happy-dom/compare/v15.11.7...v21.0.4">compare view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a href="https://www.npmjs.com/~GitHub%20Actions">GitHub Actions</a>, a new releaser for happy-dom since your current version.</p>
</details>
<br />

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=happy-dom&package-manager=npm_and_yarn&previous-version=15.11.7&new-version=21.0.4)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
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You can disable automated security fix PRs for this repo from the [Security Alerts page](https://github.com/cryptograss/rabbithole/network/alerts).

</details></pre>

VersionControl:PRs/rabbithole/35 - Revision history

DrivingThatTrain: cryptograss/rabbithole#35, as GitHub has it