Version 14.1.0

• Added activation behavior for <a> and <area> elements whose href="" points to a javascript: URL or fragment.
• Added the <datalist> element's options property.
• Added the <input> element's list property.
• Added PageTransitionEvent, and the firing of pageshow events during loading.
• Exposed the External class as a property of window.
• Fixed HTML fragment parsing (via innerHTML and outerHTML) to be spec-compliant. (pmdartus)
• Fixed HTML serialization (e.g. via innerHTML) breaking after setting certain properties to non-string values.
• Fixed how disabling an element would cause its activation behavior to forever be null, even if it were re-enabled.
• Fixed all access to attributes to ignore attributes with namespaces, per the spec.
• Fixed <style>s to no longer apply to documents without a browsing context. This includes fixing a crash that would occur with such styles if they had an @import rule.
• Fixed <option>'s label and value properties to return correct values in various edge cases.
• Fixed the load event during document loading to target the Document, not the Window.
• Fixed the pretendToBeVisual option to propagate to child subframes, as well as the main Window. (pyrho)
• Updated the minimum nwsapi version from v2.1.1 to v2.1.3, bringing along a few fixes in our selector engine.

Version 14.0.0

Breaking changes:

• JSDOM.fragment() now creates fragments whose document has no browsing context, i.e. no associated Window. This means the defaultView property will be null, resources will not load, etc.
• JSDOM.fragment(), called with no arguments, now creates a DocumentFragment with no children, instead of with a single child text node whose data was "undefined".

Other changes:

• Fixed a regression in v13.2.0 when calling element.blur() on a focused element.
• Fixed inserting <link> elements into documents with no browsing context to no longer crash if the originating JSDOM was configured to fetch the resource. Now, per spec, <link> elements only attempt to fetch if they are browsing-context connected.
• Fixed <template> elements to have the correct semantics, of using a separate browsing-context-less document to store its contents. In particular this means resources will not be fetched for elements inside the <template>, as per spec.

Version 13.2.0

• Added support for MutationObservers! (pmdartus)
• Added support for XML documents loaded in frames and iframes; previously this would error.
• Added the <progress> element's value, max, and position properties.
• Added navigator.plugins and navigator.mimeTypes. (But, they are always empty.)
• Fixed <summary> elements respond to click events by toggling their parent <details>.
• Fixed <summary> elements to be focusable.
• Fixed XML document DOCTYPE parsing to preserve any custom name values.
• Fixed XML documents to default to UTF-8, not windows-1252 like HTML documents do.
• Fixed all events fired by jsdom to have isTrusted set to true.
• Fixed DOMParser-created documents to have their readyState set to "complete".
• Fixed how nested <fieldset>s get disabled.
• Fixed getComputedStyle() to throw a sensible exception when passed the wrong argument, instead of one that exposes jsdom internals.
• Upgraded our saxes dependency, so that it now correctly errors on XML fragments like <foo bar:="1"/>.

Version 13.1.0

• Added el.insertAdjacentElement() and el.insertAdjacentText().
• Added the firing of a cancelable reset event to form.reset(). (epfremmer)
• Added the type, value, and defaultValue properties to <output> elements, including their form reset behavior. (epfremmer)
• Added the outputEl.htmlFor property.
• Fixed the performance of parsing large text nodes, particularly noticeable for large inline <style> or <script> elements. This regressed in v11.6.0. To learn more, see V8 issue #6730.
• Fixed the style property on <a> and <area> elements. This regressed in v13.0.0.
• Fixed node.isConnected to not always return false for nodes inside a shadow tree. (pmdartus)
• Fixed <button type="reset"> and <input type="reset"> elements to actually perform a form reset when clicked, instead of doing nothing. (epfremmer)
• Fixed el.setCustomValidity() for <output> and <fieldset>.
• Fixed activation behavior when dispatching bubbling click events, so that for example calling el.click() on the child of a submit button element will submit the form.
• Fixed our XML parsing code to ignore text outside the root element, instead of treating it as an error. (lddubeau)
• Fixed XML serialization when elements had an unknown prefix.
• Fixed radio button group name matching to be case-sensitive, per a spec update.
• Fixed focus/blur events to be composed.
• Fixed mediaElement.duration to default to NaN.
• Fixed olEl.start to default to 1.
• Fixed using XMLHttpRequest against non-existant file: URLs to treat that as a network error, instead of crashing. (pascalbayer) Note that in the future we may completely disable XMLHttpRequest usage against file: URLs to follow the browser security model.
• Fixed document.title in SVG documents.
• Fixed titleElement.text to return the child text content, instead of being the same as titleElement.innerHTML.
• Fixed <textarea>s to properly account for child CDATA section nodes changing.
• Fixed the value of Element.prototype[Symbol.unscopables].

Version 13.0.0

Breaking change:

• Removed support for v1.x of the canvas package, in favor of v2.x. This also removes support for canvas-prebuilt, since canvas v2.x has a built-in prebuilt version.

Other changes:

• Added proper XML serialization, based on the w3c-xmlserializer package. Previously we were just using the HTML serialization, even in XML documents.
• Added the storageEvent.initStorageEvent() method.
• Added support for the passive option to addEventListener().
• Added the relList property to <a>, <area>, and <link> elements.
• Fixed our implementation of the node tree modification constraints (for example the ensure pre-insertion validity algorithm). It is no longer possible to add, remove, or move nodes to create impossible DOM trees. (pmdartus)

Version 12.2.0

• Added support for shadow DOM! This includes shadow roots, slots, composed events, and more. (pmdartus)
• Added the element.toggleAttribute() method.
• Fixed XMLHttpRequest sometimes sending an empty request body after a preflight request. (andreasf)
• Fixed the formElement.form property to use an algorithm that also checks the form="" attribute, instead of always looking for the closest ancestor <form> element. (jamietre)
• Stopped swallowing errors when the canvas or canvas-prebuilt packages were installed, but failed to load. (joscha)

Version 12.1.0

• Dramatically upgraded our XML parser, from the unmaintained sax package to the well-maintained saxes replacement. This increases our specification conformance, including rejecting certain ill-formed XML documents that were previously accepted, and properly handling other constructs like empty comments, CDATA sections, and <script> elements. (lddubeau)
• Added fieldsetEl.elements and fieldsetEl.type properties.
• Added the options parameter to dom.runVMScript(). (SimenB)
• Added the ability for custom resource loader fetch() implementations to see what element initiated the fetch. (sarvaje)
• Fixed input and change events for <input> elements to be trusted and uncancelable.
• "Fixed" <script>s with the async attribute to not execute before sync <script>s that precede them. We still do not, in general, have proper execution of scripts during the initial parsing of a document, so this fix is more of a reduction of badness than an alignment with the specification. This behavior regressed in v12.0.0. (sarvaje)

Version 12.0.0

This major release brings along our new resource loader API, finally bringing all the capabilities from jsdom v9 to the new (jsdom v10+) API. Thanks very much to @sarvaje for his work to make this possible!

Breaking changes:

• jsdom now requires Node.js v8.
• Removed the old jsdom API, as the new API now has all the capabilities you need.
• Updated our parse5 dependency to v5, which changes the format of the node locations returned by dom.nodeLocation().
• Updated our whatwg-url dependency to v7, which changes the origin of file: URLs to be an opaque origin (and thus file: URLs are no longer same origin to each other).

Other changes:

• Added countReset(), dir() and dirxml() methods to console.
• Added the InputEvent class.
• Added window.status.
• Added htmlElement.draggable.
• Fixed window.frameElement to correctly return an actual HTMLElement instance, instead of a jsdom internal class.
• Fixed cloning of textarea elements to preserve their values.
• Fixed select.selectedOptions sometimes returning outdated results.
• Fixed CSS selection APIs sometimes returning outdated results, especially for state pseudo-class selectors like :checked.
• Fixed CSS selection APIs to throw an error for invalid selectors even when used on empty nodes.
• Fixed window.name to default to the empty string, per spec, instead of "nodejs".
• Fixed the default User-Agent to say "unknown OS" instead of "undefined" when jsdom is used in web browsers.