SVGElement - Web APIs
svgelement.ownersvgelementread only an svgsvgelement referring to the nearest ancestor <svg> element.

SVG 2 support in Mozilla - SVG: Scalable Vector Graphics
svgexternalresourcesrequired removed never implemented svgelement.viewportelement and svgelement.ownersvgelement nullable implementation status unknown svgelement.getpresentationattribute() removed never implemented (prototype removed in bug 921456) svgcolor and svgicccolor removed never implemented svgelement.focus(), svgelement.blur() not implemented (bug 778654) svgelement.tabindex implemented (bug 778654) document.activeelement implementatio...