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@dependabot dependabot bot commented on behalf of github Oct 11, 2025

Bumps happy-dom from 17.6.3 to 20.0.0.

Release notes

Sourced from happy-dom's releases.

v20.0.0

I avoid making breaking changes as much as possible in Happy DOM. When I have to make a breaking change, I try to keep it as minimal as possible. This could be a breaking change that impacts many projects, and I am truly sorry if you are negatively affected by this.

💣 Breaking Changes

  • Due to security risks, JavaScript evaluation is now disabled by default - By @​capricorn86 in task #1930
    • A security advisory (GHSA-37j7-fg3j-429f) has been reported that shows a security vulnerability where it's possible to escape the VM context and get access to process level functionality. Big thanks to @​Mas0nShi for reporting this!
    • Due to this security risk, JavaScript evaluation is now disabled by default to prevent that consumers accidentally executes untrusted code without taking precautions
    • JavaScript evaluation can be enabled by setting enableJavaScriptEvaluation to "true". Read more about how to enable this in a safer way in the Wiki

v19.0.2

👷‍♂️ Patch fixes

  • Fixes issue related to CSS pseudo selector :scope that didn't work correctly for direct descendants to root - By @​capricorn86 in task #1620

v19.0.1

👷‍♂️ Patch fixes

  • Fixes issue with sending in URLs as string in @happy-dom/server-renderer config using CLI - By @​capricorn86 in task #1908

v19.0.0

💣 Breaking Changes

  • Removes support for CommonJS - By @​capricorn86 in task #1730
    • Support for CommonJS is no longer needed as Node.js v18 is deprecated and v20 and above supports loading ES modules from CommonJS using require()
  • Updates Jest to v30 in the @happy-dom/jest-environment package - By @​capricorn86 in task #1730
  • Makes Jest packages peer dependencies to make it easier to align versions with the project using @happy-dom/jest-environment - By @​capricorn86 in task #1730

🎨 Features

  • Adds a new package called @happy-dom/server-renderer - By @​capricorn86 in task #1730
    • This package provides a simple way to statically render (SSG) or server-side render (SSR) your client-side application
    • Read more in the Wiki under Server-Renderer
  • Adds support for import.meta to the ESM compiler - By @​capricorn86 in task #1730
  • Adds support for the CSS pseudo selector :scope - By @​capricorn86 in task #1620
  • Improves support for MediaList - By @​capricorn86 in task #1730
  • Adds support for CSSKeywordValue, CSSStyleValue, StylePropertyMap, StylePropertyMap, StylePropertyMapReadOnly - By @​capricorn86 in task #1730
  • Improves debug information in the ESM compiler - By @​capricorn86 in task #1730
  • Adds validation of browser settings when creating a new Browser instance - By @​capricorn86 in task #1730
  • Adds support for the browser setting navigation.beforeContentCallback which makes it possible to inject event listeners or logic before content is loaded to the document when navigating a browser frame - By @​capricorn86 in task #1730
  • Adds support for the browser setting fetch.requestHeaders which provides with a declarative and simple way to add request headers - By @​capricorn86 in task #1730
  • Adds support for setting an object to timer.preventTimerLoops which makes it possible to define different settings for setTimeout() and requestAnimationFrame() - By @​capricorn86 in task #1730
  • Adds support for the browser setting viewport which makes it possible to define a default viewport size - By @​capricorn86 in task #1730
  • Adds support for the parameters beforeContentCallback and headers to BrowserFrame.goto(), BrowserFrame.goBack(), BrowserFrame.goForward(), BrowserFrame.goSteps() and BrowserFrame.reload() - By @​capricorn86 in task #1730
  • Adds support for PopStateEvent and trigger the event when navigating the page history using History.pushState() - By @​capricorn86 in task #1730
  • Use local file paths for virtual server files in stack traces - By @​capricorn86 in task #1730
  • Adds support for ResponseCache.fileSystem.load() and ResponseCache.fileSystem.save() for storing and loading cache from the file system - By @​capricorn86 in task #1730

👷‍♂️ Patch fixes

  • Fixes a bug in the ESM compiler that caused it to fail to parse certain code - By @​capricorn86 in task #1730
  • Disables the same origin policy when navigating a browser frame using BrowserFrame.goto() - By @​capricorn86 in task #1730
  • Fixes bug where CSS selectors with the pseudos "+" and ">" failed for selectors without arguments - By @​capricorn86 in task #1730

... (truncated)

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Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 17.6.3 to 20.0.0.
- [Release notes](https://github.com/capricorn86/happy-dom/releases)
- [Commits](capricorn86/happy-dom@v17.6.3...v20.0.0)

---
updated-dependencies:
- dependency-name: happy-dom
  dependency-version: 20.0.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Oct 11, 2025
@github-management-service

It looks like you are reviewing a Dependabot upgrade PR! 🛠️
That’s great! Keeping our packages up to date to fix security issues in our stack is super important. Team Application Security wants to help make this process as easy and low friction as possible while still moving at pace.

We aim to merge Dependabot PRs within the below timeframes. The objectives are based on the severity of the security vulnerability we are mitigating with the upgrade:

Severity Target Merge (days)
CRITICAL 7 days
HIGH 14 days
MEDIUM 30 days
LOW 90 days

🎯 Target merge date for this PR: 18/10/2025 🎯

FAQ

What if we aren’t vulnerable to this particular CVE? Do we still have to upgrade the package? It’s still a good idea to upgrade the package if we can. With new code patterns and paths being introduced every day, we have no guarantee that we won’t later make ourselves vulnerable. Keeping packages up to date as a matter of due course is also good hygiene.
What if we’re not vulnerable and upgrading is going to be a lot of work? In these cases it’s a good idea to list out the steps you took to confirm we are not vulnerable in this PR. The PR can then be closed and the corresponding Dependabot Alert should be dismissed with the triage steps included as a comment. Please get in touch with Team Application Security via #ask-security before dismissing any CRITICAL alerts.
This is a major version upgrade that requires substantial code refactoring. What should I do? If the upgrade requires substantial refactoring then it is possible that we will miss the objectives we have outlined above. In these cases, you should add the dependabot-refactor-required label to this PR and ping #ask-security for further advice.

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Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff Package Supply Chain
Security
Vulnerability Quality Maintenance License
Updatednpm/​react@​18.3.1 ⏵ 19.2.0100 +11008497100
Updatednpm/​happy-dom@​17.6.3 ⏵ 20.0.0991008895 +1100
Updatednpm/​react-dom@​18.3.1 ⏵ 19.2.0100 +110092 +197100

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@github-management-service github-management-service merged commit ef09341 into main Oct 14, 2025
2 checks passed
@dependabot dependabot bot deleted the dependabot/npm_and_yarn/dev/react-plugin-tools/react_plugin_template/happy-dom-20.0.0 branch October 14, 2025 10:02
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