The SVG attribute "d" is a presentation attribute (https://www.w3.org/TR/SVG/styling.html#TermPresentationAttribute) and thus should be available as a CSS property.
I expect not supporting this is causing other WPT failures, but it is at least costing us a unique browser failure in web-animations/responsive/d.html.
*** This bug has been marked as a duplicate of bug 234227 ***
*** This bug has been marked as a duplicate of bug 272447 ***