Closed
Description
layout, size, and paint containment probably shouldn't apply to SVG elements other than svg and foreignObject. Currently the spec excludes elements that "do not generate a principal box"... but I don't actually see anything in the relevant definitions that says that these SVG elements don't generate a principal box.
I think it should be the case that they don't, and therefore that layout, size, and paint containment don't apply, but this ought to be defined. (It's also not 100% clear about things like outer svg, svg within an SVG structure, and foreignObject.)