Move dataset attribute from Element to HTMLElement / SVGElement as per the specifications: - https://html.spec.whatwg.org/multipage/dom.html#htmlelement - https://svgwg.org/svg2-draft/types.html#InterfaceSVGElement Firefox and Chrome seem to have dataset on HTMLElement but not on SVGElement.
See also discussion at https://github.com/whatwg/dom/issues/280
Created attachment 285830 [details] Patch
Comment on attachment 285830 [details] Patch Clearing flags on attachment: 285830 Committed r204377: <http://trac.webkit.org/changeset/204377>
All reviewed patches have been landed. Closing bug.