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Consider using Prettier or similar

Status: Open.

#4017 In jsdom/jsdom;

· domenic opened on Jan 13, 2026

Implement screen orientation API

Status: Open.

Feature

#4007 In jsdom/jsdom;

· tkrotoff opened on Dec 26, 2025

Cannot parse www.google.com

css

Status: Open.

#4002 In jsdom/jsdom;

· millesabots2022 opened on Dec 20, 2025

jsdom 27.3.0 crashes on valid CSS due to @acemir/cssom regression

css

has to-upstream testThis bug has a failing to-upstream web platform test waiting to be fixedThis bug has a failing to-upstream web platform test waiting to be fixed

Status: Open.

#3997 In jsdom/jsdom;

· peritpatrio opened on Dec 10, 2025

Implement CSS <code>@property</code>

css

Status: Open.

Feature

#3993 In jsdom/jsdom;

· Fox32 opened on Dec 8, 2025

Implement window.CSS interface

css

Status: Open.

Feature

#3991 In jsdom/jsdom;

· jdufresne opened on Dec 7, 2025

Nested @media in style sheet fails to parse

css

has to-upstream testThis bug has a failing to-upstream web platform test waiting to be fixedThis bug has a failing to-upstream web platform test waiting to be fixed

Status: Open.

#3988 In jsdom/jsdom;

· Fox32 opened on Nov 18, 2025

Performance regression in jsdom@27

css

performance

Status: Open.

#3985 In jsdom/jsdom;

· Janpot opened on Nov 12, 2025

Performance regression in <code>getComputedStyle()</code>

css

performance

Status: Open.

#3984 In jsdom/jsdom;

· Janpot opened on Nov 12, 2025

<code>Error: Image given has not completed loading</code> is thrown after drawing an empty image onto canvas

Status: Open.

#3978 In jsdom/jsdom;

· krypciak opened on Nov 3, 2025

JSDOM-thrown <code>DOMException</code>s pass <code>instanceof globalThis.Error</code> but fail <code>Error.isError</code>

Status: Open.

#3973 In jsdom/jsdom;

· lionel-rowe opened on Oct 27, 2025

<code>getComputedStyle</code> of a <code>border-color</code> repeats the color thrice

css

has to-upstream testThis bug has a failing to-upstream web platform test waiting to be fixedThis bug has a failing to-upstream web platform test waiting to be fixed

Status: Open.

#3972 In jsdom/jsdom;

· rijenkii opened on Oct 25, 2025