[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
jsdom	^27.1.0 → ^30.0.0

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Release Notes

jsdom/jsdom (jsdom)

v30.1.3

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• Improved performance of getComputedStyle() and computed CSS property reads, including with stylesheets containing attribute selectors. (@​scttcper, @​asamuzaK)
• Fixed slowdowns when focusing elements and running interaction tests, which regressed in v30.1.2. (@​scttcper)
• Fixed XMLHttpRequest reusing credentials supplied to xhr.open() after cross-origin redirects, including in response to authentication challenges from the destination.
• Fixed XMLHttpRequest incorrectly sending and accepting cookies after cross-origin redirects back to the document's origin when xhr.withCredentials is false.
• Fixed exceptions from malformed CSS math functions, such as calc(0px - @submenu_space), while parsing documents, stylesheets, and style declarations. (@​rnavarro)
• Fixed getComputedStyle() ignoring style rules nested inside multiple @media rules.
• Fixed CSS shorthands overwriting longhands with higher priority or specificity during style computation, including declarations containing CSS variables.
• Fixed getComputedStyle() returning unresolved or inconsistent shorthand values, including for 'background', 'border', 'flex', 'font', 'margin', and 'padding', and incorrect shorthand defaults and inheritance.
• Fixed computed background positions to resolve font-relative lengths using the final font size and handle multiple image layers correctly.
• Fixed computed 'color' values depending on property read order, including unresolved color-mix() results, which regressed in v29.0.2.
• Fixed currentcolor border colors incorrectly becoming transparent when 'color' uses light-dark() or relative color syntax.
• Fixed CSS calculations that reduce to a percentage incorrectly producing pixel values, which regressed in v30.0.0.
• Fixed numeric font weights in the 'font' shorthand incorrectly setting 'line-height'.
• Fixed selector matching involving XML namespaces, and selectors such as [data-a|=""] failing to match empty values and values beginning with -. (@​asamuzaK)

v30.1.2

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• Updated URLs to support Unicode v18.0.0 in internationalized domain names.
• Reduced package size and memory use for CSS property definitions. (@​scttcper)
• Fixed severe slowdowns when building large DOM trees, including SVG charts with D3, which regressed in v30.1.0. (@​cmdcolin)
• Fixed exponentially slow reads of empty inherited CSS custom properties in deeply nested documents, and custom properties incorrectly inheriting past an initial reset. (@​scttcper)
• Fixed getComputedStyle() returning stale results after editing stylesheet declarations, selectors, or media queries, including in imported stylesheets.
• Fixed selector matching and computed styles after changes to form control checkedness, indeterminacy, selection, values, and validity, including during form resets and canceled clicks.
• Fixed computed styles for :focus, :focus-visible, :focus-within, and selectors containing them after focus changes, including inside focus and blur listeners. (@​asamuzaK)
• Fixed element.focus() incorrectly focusing elements hidden by 'display', including through shadow hosts and slots, and elements excluded by shadow DOM slot assignment. (@​asamuzaK)
• Fixed getComputedStyle() throwing for elements without inline-style support, including XML and MathML elements.
• Fixed a memory leak where stylesheet parsing retained the last parsed stylesheet's window after window.close().
• Fixed memory growth from long-lived MutationObserver instances retaining bookkeeping for garbage-collected nodes. (@​scttcper)
• Fixed retained select.selectedOptions collections becoming stale after selection changes and form resets.
• Fixed rejection of negative CSS sizing values, including for 'min-width', 'min-height', 'max-width', and 'max-height', which regressed in v30.1.0.
• Fixed handling of deeply nested color-mix() expressions, including exceptions during color resolution. (@​asamuzaK)

v30.1.1

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• Fixed spurious window blur and focusout events and incorrect event.relatedTarget values when focusing an element after removing the previously focused element, which regressed in v30.1.0. (@​asamuzaK)
• Fixed focus and blur behavior across frames, and focusing the document's viewport through document.documentElement.focus(). (@​asamuzaK)
• Fixed focus targets removed or disabled by blur listeners becoming active, and text selections made by focus and blur listeners being overwritten. (@​asamuzaK)
• Fixed element.focus() incorrectly focusing disabled form controls and <input type="hidden"> elements with tabindex="". (@​scttcper)
• Fixed invalid style.setProperty() calls changing existing !important priorities, serialized styles, or mutation records. (@​FedgeNo)
• Fixed !important handling when updating CSS longhands after shorthands, using variables or CSS-wide keywords, and assigning style properties directly. (@​FedgeNo)
• Fixed <noscript> parsing with includeNodeLocations: true or inside frames to honor the runScripts option.
• Fixed the storageQuota option being ignored by frames.
• Fixed encoding detection of HTML and XML byte input to honor XML encoding declarations and detect UTF-16 without a byte order mark.
• Fixed exceptions caused by truncated charset parameters in <meta> elements, and encoding detection incorrectly using incomplete <meta> tags. (@​FedgeNo)
• Fixed XML serialization errors for namespaces named constructor, toString, __proto__, or "null", and incorrect reuse of namespace prefixes declared on sibling elements.
• Fixed element.innerHTML and element.outerHTML in XML documents to reject invalid characters in attribute values and avoid stack overflows on large strings.
• Fixed selector matching for :lang(), :nth-child(... of ...) after mutations, and :has() with duplicate IDs or nested logical pseudo-classes. (@​asamuzaK)

v30.1.0

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jsdom is feeling the AGI!

This release is dedicated to @​scttcper, who unleashed @​codex upon jsdom and found tons of performance improvements. Along the way, he found and fixed many correctness issues as well.

We really appreciate his thoughtful PRs, which did a great job following the project's contribution guidelines, and were clearly human-curated, with their PR descriptions edited to be brief and respectful of the maintainers' time.

Thanks to @​scttcper, as well as all the other contributors of this release (most of whom were AI-assisted).

• Added named access to elements on document, such as document.myForm for <form name="myForm">. (@​vojtisprime11)
• Added QuotaExceededError, including its use for storage quota errors and oversized crypto.getRandomValues() requests.
• Added support for the relaxed DOM naming rules when creating elements, attributes, and document types.
• Improved performance of DOM construction, tree mutations, range operations, and live collection access, especially on large documents. (@​scttcper, @​erezrokah)
• Improved performance of getComputedStyle(), style changes, and CSS serialization. (@​scttcper, @​jhult)
• Improved performance of event dispatch, form control and label lookups, and updates to <select> elements and radio button groups. (@​scttcper)
• Reduced memory use when creating and working with DOM nodes, attributes, event listeners, and mutation observers. (@​scttcper)
• Changed window.close() to preserve access to the document and its DOM through retained references.
• Fixed element.querySelectorAll() returning no matches when the first part of the selector matches the element itself, which regressed in v30.0.0. (@​asamuzaK)
• Fixed case sensitivity in CSS attribute selectors, including selectors matching data-state="", title="", and other case-sensitive values. (@​asamuzaK)
• Fixed document.querySelector() failing to find a matching element when an earlier element has the same ID but does not match the rest of the selector. (@​vojtisprime11)
• Fixed :focus matching in shadow trees. (@​asamuzaK)
• Fixed DOM insertion and replacement, including valid document.replaceChildren() calls, invalid document element and doctype placements, and mutations during element.replaceWith().
• Fixed the ordering of script execution, custom element callbacks, iframe loading, and mutation observer notifications during DOM insertion, including in shadow trees.
• Fixed queued events and navigation continuing after window.close() or iframe removal, and prevented new scripts, resource loads, timers, and animation frames from starting in destroyed documents. (@​scttcper)
• Fixed parent documents waiting indefinitely for loading to finish when a child iframe removes itself during loading.
• Fixed request cancellation across redirects, during pending requestInterceptor() callbacks, and when reusing an XMLHttpRequest after aborting it.
• Fixed resource loading and JSDOM.fromURL() potentially hanging when response handling throws and response stream cleanup does not finish.
• Fixed successful cached resource loads being treated as aborted.
• Fixed getComputedStyle() and document.styleSheets using the wrong stylesheet order after inserting or updating <style> elements.
• Fixed getComputedStyle() ignoring nested @import and @media rules in imported stylesheets, and returning stale results after imports finish loading.
• Fixed style invalidation, stylesheet removal, and frame source updates in shadow trees.
• Fixed repeated getComputedStyle() calls changing case-sensitive background URLs, and inconsistent resolution of border shorthands containing system colors. (@​scttcper)
• Fixed computed border widths, including borderless elements incorrectly reporting 16px, which regressed in v30.0.0. (@​Alberto-BaseNet)
• Fixed getComputedStyle() to resolve 'font-weight' keywords to numeric values. (@​tianrking)
• Fixed getComputedStyle() to convert lengths to pixels inside CSS math functions containing percentages, and to resolve percentages in 'font-size' math functions. (@​soroushm)
• Fixed serialization of min() and max() containing nested calc(), which regressed in v30.0.0. (@​asamuzaK)
• Fixed CSS values mixing lengths or percentages with math functions, such as 'grid-template-columns' values containing both 100px and calc(). (@​rome-xi)
• Fixed parsing of 'background' and 'border' shorthands with adjacent components, such as url(a.png)no-repeat, including a crash when parsing inline styles. Also fixed handling of invalid shorthand assignments and escaped or unusual characters in CSS declarations. (@​asamuzaK)
• Fixed parsing of unitless zero values in 'flex' shorthands, such as 35 1 0, and rejection of negative 'flex-basis' lengths and percentages. (@​asamuzaK)
• Fixed shorthand style assignments producing extra mutation records and custom element callbacks for intermediate values. (@​scttcper)
• Fixed Range and Selection handling of CDATA sections, including boundary offsets and range cloning, extraction, deletion, insertion, and stringification. (@​scttcper)
• Fixed text.normalize() incorrectly removing the text node or merging its siblings. (@​scttcper)
• Fixed cloning and importing CDATA sections and processing instructions whose contents have been modified, and serialization of CDATA sections adopted into HTML documents.
• Fixed stale named-property collections on window, and incorrect named access from empty or namespaced id="" and name="" values. (@​scttcper)
• Fixed elements in documents created with DOMParser or document.implementation.createHTMLDocument() appearing as named properties on window and being retained in memory. (@​Iaotle)
• Fixed memory leaks from mutation observers retaining observed nodes, abort signals retaining removed event listeners, and storage event tracking retaining closed windows. (@​scttcper)
• Fixed storage events being sent to windows created after the storage change, and ensured surviving recipients still receive events when the source document is destroyed.
• Fixed attribute lookups after namespace prefix changes, and namespaced attributes incorrectly affecting ID lookups and element behavior. (@​scttcper)
• Fixed input.list in detached element trees. (@​scttcper)
• Fixed attr.ownerDocument after setting an attribute node on an element in another document or adopting its element. (@​Kjubikstronk)
• Fixed fresh element.getElementsByTagName() calls using the previous document's case-sensitivity rules after adoption between HTML and XML documents. (@​Kjubikstronk)
• Fixed element.tagName returning stale casing after adoption between HTML and XML documents.
• Fixed radio button grouping and checkedness updates for controls with different form owners, controls outside their form, unnamed controls, and canceled clicks.
• Fixed <select> selection updates when moving options, and unintended selection resets when moving a whole <select> or changing unrelated descendants.
• Fixed cloning <input> elements to preserve input.indeterminate.
• Fixed focus state after removing a focused element or its ancestor, including inside shadow trees.
• Fixed script execution when inserting children into a connected, empty <script>. (@​Kjubikstronk)
• Fixed incorrect script execution after changes to src="", and handling of type="", for="", and event="".
• Fixed document.currentScript during nested script execution and scripts in shadow trees.
• Fixed event dispatch, window.event, and default passive listener handling for non-node event targets, and event dispatch when user code modifies window.constructor.
• Fixed volumechange and ratechange events to fire asynchronously. (@​christianaurichzm)
• Fixed DOM APIs accepting user-created proxies around DOM objects where genuine DOM objects are required.
• Fixed XPath iterator invalidation after DOM mutations and errors for invalid result types.
• Fixed NodeIterator traversal when its filter removes nodes.
• Fixed fileReader.readAsText() to honor the blob's MIME type charset when no supported explicit encoding is supplied.
• Fixed fractional seconds in time input parsing and serialization. (@​Jaybhade)
• Fixed large input.valueAsNumber assignments for time and local date/time inputs.
• Fixed hard wrapping of <textarea> values to use the numeric textarea.cols value.
• Fixed document.readyState to be "complete" for documents created with document.implementation.createDocument() and document.implementation.createHTMLDocument().
• Fixed element.translate for empty translate="" values and elements without a parent.
• Fixed XML parsing of lone surrogates to replace them with the Unicode replacement character.
• Fixed node.lookupNamespaceURI() for the xml and xmlns prefixes. (@​vojtisprime11)
• Fixed <base> elements to ignore data: and javascript: URLs. (@​vojtisprime11)
• Fixed svgElement.viewportElement inside <symbol> elements.
• Fixed the default blobEvent.timecode to be NaN.
• Fixed the object shape and property descriptors of CSS.

v30.0.1

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• Fixed getComputedStyle() with calc() and other functions throwing an exception, which regressed in v30.0.0. (@​asamuzaK)
• Sped up up range operations on large documents (@​leonidaz)

v30.0.0

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Breaking changes:

• Node.js minimum version raised to ^22.22.2 || ^24.15.0 || >=26.0.0.

Other changes:

• Added CSS.escape() and CSS.supports() functions. (@​asamuzaK)
• Added 'background-position-x' and 'background-position-y' CSS properties. (@​olagokemills)
• Fixed getComputedStyle() to convert length values into pixels. (@​asamuzaK)
• Fixed CSS function serialization, e.g., in the return value of getPropertyValue(). (@​asamuzaK)
• Fixed the type of error thrown by document.evaluate() (@​dokson)

v29.1.1

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• Fixed 'border-radius' computed style serialization. (@​asamuzaK)
• Fixed computed style computation when using 'background-origin' and 'background-clip' CSS properties. (@​asamuzaK)
• Significantly optimized initial calls to getComputedStyle(), before the cache warms up. (@​asamuzaK)

v29.1.0

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• Added basic support for the ratio CSS type. (@​asamuzaK)
• Fixed getComputedStyle() sometimes returning outdated results after CSS was modified. (@​asamuzaK)

v29.0.2

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• Significantly improved and sped up getComputedStyle(). Computed value rules are now applied across a broader set of properties, and include fixes related to inheritance, defaulting keywords, custom properties, and color-related values such as currentcolor and system colors. (@​asamuzaK)
• Fixed CSS 'background' and 'border' shorthand parsing. (@​asamuzaK)

v29.0.1

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• Fixed CSS parsing of 'border', 'background', and their sub-shorthands containing keywords or var(). (@​asamuzaK)
• Fixed getComputedStyle() to return a more functional CSSStyleDeclaration object, including indexed access support, which regressed in v29.0.0.

v29.0.0

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Breaking changes:

• Node.js v22.13.0+ is now the minimum supported v22 version (was v22.12.0+).

Other changes:

• Overhauled the CSSOM implementation, replacing the @acemir/cssom and cssstyle dependencies with fresh internal implementations built on webidl2js wrappers and the css-tree parser. Serialization, parsing, and API behavior is improved in various ways, especially around edge cases.
• Added CSSCounterStyleRule and CSSNamespaceRule to jsdom Windows.
• Added cssMediaRule.matches and cssSupportsRule.matches getters.
• Added proper media query parsing in MediaList, using css-tree instead of naive comma-splitting. Invalid queries become "not all" per spec.
• Added cssKeyframeRule.keyText getter/setter validation.
• Added cssStyleRule.selectorText setter validation: invalid selectors are now rejected.
• Added styleSheet.ownerNode, styleSheet.href, and styleSheet.title.
• Added bad port blocking per the fetch specification, preventing fetches to commonly-abused ports.
• Improved Document initialization performance by lazily initializing the CSS selector engine, avoiding ~0.5 ms of overhead per Document. (@​thypon)
• Fixed a memory leak when stylesheets were removed from the document.
• Fixed CSSStyleDeclaration modifications to properly trigger custom element reactions.
• Fixed nested @media rule parsing.
• Fixed CSSStyleSheet's "disallow modification" flag not being checked in all mutation methods.
• Fixed XMLHttpRequest's response getter returning parsed JSON during the LOADING state instead of null.
• Fixed getComputedStyle() crashing in XHTML documents when stylesheets contained at-rules such as @page or @font-face.
• Fixed a potential hang in synchronous XMLHttpRequest caused by a race condition with the worker thread's idle timeout.

v28.1.0

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• Added blob.text(), blob.arrayBuffer(), and blob.bytes() methods.
• Improved getComputedStyle() to account for CSS specificity when multiple rules apply. (@​asamuzaK)
• Improved synchronous XMLHttpRequest performance by using a persistent worker thread, avoiding ~400ms of setup overhead on every synchronous request after the first one.
• Improved performance of node.getRootNode(), node.isConnected, and event.dispatchEvent() by caching the root node of document-connected trees.
• Fixed getComputedStyle() to correctly handle !important priority. (@​asamuzaK)
• Fixed document.getElementById() to return the first element in tree order when multiple elements share the same ID.
• Fixed <svg> elements to no longer incorrectly proxy event handlers to the Window.
• Fixed FileReader event timing and fileReader.result state to more closely follow the spec.
• Fixed a potential hang when synchronous XMLHttpRequest encountered dispatch errors.
• Fixed compatibility with environments where Node.js's built-in fetch() has been used before importing jsdom, by working around undici v6/v7 incompatibilities.

v28.0.0

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• Overhauled resource loading customization. See the new README for details on the new API.
• Added MIME type sniffing to <iframe> and <frame> loads.
• Regression: WebSockets are no longer correctly throttled to one connection per origin. This is a result of the bug at nodejs/undici#4743.
• Fixed decoding of the query components of <a> and <area> elements in non-UTF-8 documents.
• Fixed XMLHttpRequest fetches and WebSocket upgrade requests to be interceptable by the new customizable resource loading. (Except synchronous XMLHttpRequests.)
• Fixed the referrer of a document to be set correctly when redirects are involved; it is now the initiating page, not the last hop in the redirect chain.
• Fixed correctness bugs when passing ArrayBuffers or typed arrays to various APIs, where they would not correctly snapshot the data.
• Fixed require("url").parse() deprecation warning when using WebSockets.
• Fixed <iframe>, <frame>, and <img> (when canvas is installed) to fire load events, not error events, on non-OK HTTP responses.
• Fixed many small issues in XMLHttpRequest.

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