• Added a fully spec-compliant implementation of window.atob and window.btoa. (@jeffcarp)
• Fixed many issues with our <canvas> implementation:
  • With the canvas npm package installed, <canvas> elements are now properly instanceof HTMLCanvasElement and instanceof HTMLElement.
  • <canvas> elements now present the same uniform spec-compliant API both with and without the canvas npm package installed. If the package is not installed, some of the methods will cause not-implemented jsdomError events to be emitted on the virtual console.
  • The width and height properties now correctly reflect the width and height attributes, and have the appropriate default values of 300 and 150.
  • With the canvas npm package installed, <canvas> elements now generally play better with other parts of jsdom, e.g., document.getElementById actually works with them.
• Introduced and upated many of our element classes, so that at least every tag name/element class pair is now correct, even if some of the classes are stubs. In particular:
  • Complete implementations were added for HTMLDataElement, HTMLSpanElement, and HTMLTimeElement.
  • Stubs were added for HTMLDataListElement, HTMLDialogElement, HTMLEmbedElement, HTMLMeterElement, HTMLOutputElement, HTMLProgressElement, HTMLSourceElement, HTMLTemplateElement, and HTMLTrackElement.
  • HTMLAudioElement was implemented in full, although its HTMLMediaElement base, where most of its functionality is, is still largely a stub.
  • HTMLTableSectionElement, HTMLTableRowElement, HTMLTableCellElement, HTMLTableDataCellElement, and HTMLTableHeaderCellElement were updated to the latest spec.
  • HTMLIsIndexElement was removed; it has never been produced by the parser since 1.0.0-pre.1, and so it has been just a vestigial global property.
  • Appropriate constants were added to HTMLMediaElement.
• Updated everything having to do with base URLs to be per-spec:
  • Added Node.prototype.baseURI property to get the node's owner document's base URL.
  • HTMLBaseElement's href getter now contains appropriate fallbacks and always returns an absolute URL, per spec.
  • If there are no base elements in an "about:blank" iframe document, the base URL correctly falls back to the parent window's base URL.
• When you provide a url: ... option to jsdom.jsdom() or jsdom.env(), the given string is now attempted to be resolved as a URL before it is installed as document.URL.
  • So for example, providing url: "http://example.com" will mean document.URL returns "http://example.com/", with a trailing slash.
  • In a future major release, we will start throwing if strings that cannot be parsed as valid absolute URL are provided for this option.