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Bug in namespace handling

bugSomething isn't workingSomething isn't working

Status: Open.

#2153 In capricorn86/happy-dom;

· jendrikw opened on May 8, 2026

TreeWalker.previousNode() returns null when previous sibling has skipped child nodes

bugSomething isn't workingSomething isn't working

Status: Open.

#2152 In capricorn86/happy-dom;

· igaswiderska opened on May 7, 2026

Attr.nodeValue always returns null

Status: Open.

#2151 In capricorn86/happy-dom;

· ursm opened on May 4, 2026

RangeError: Maximum call stack size exceeded when async document event listeners are registered (reka-ui DismissableLayer incompatibility)

bugSomething isn't workingSomething isn't working

Status: Open.

#2149 In capricorn86/happy-dom;

· antoinezanardi opened on May 2, 2026

when using DOMParser().parseFromString(), happyDOM.close() does not clean up the generated documents.

bugSomething isn't workingSomething isn't working

Status: Open.

#2148 In capricorn86/happy-dom;

· hitsthings opened on Apr 29, 2026

Unnecessary SyntaxError eager creation

Status: Open.

#2146 In capricorn86/happy-dom;

· joaocraveiro opened on Apr 26, 2026

getBBox returns zero values for SVG elements

bugSomething isn't workingSomething isn't working

Status: Open.

#2145 In capricorn86/happy-dom;

· LePhenix47 opened on Apr 26, 2026

Implement Navigation API

enhancementNew feature or requestNew feature or request

Status: Open.

#2144 In capricorn86/happy-dom;

· Master-Hash opened on Apr 23, 2026

Performance regression in selector parsing since 20.6.3

bugSomething isn't workingSomething isn't working

Status: Open.

#2142 In capricorn86/happy-dom;

· rgrove opened on Apr 20, 2026

Add support for HTTP proxies

enhancementNew feature or requestNew feature or request

Status: Open.

#2137 In capricorn86/happy-dom;

· ortutay opened on Apr 13, 2026

Clicking <a download> with blob URL incorrectly navigates window.location and sets origin to null

bugSomething isn't workingSomething isn't working

Status: Open.

#2129 In capricorn86/happy-dom;

· nathanhannig opened on Apr 7, 2026

Pull request workflow uses Node.js 20 actions that are deprecated

Status: Open.

#2127 In capricorn86/happy-dom;

· hamirmahal opened on Apr 7, 2026