Web Compatibility Support • Re: apple.com "service unavailable"

Weird, I don't even see in the spec "none" being a valid option to DOMMatrix(), it looks like for an empty one you pass nothing... what is "none" even supposed to do?

Which spec are you looking at? In section 6.2 of Geometry Interfaces Module Level 1 (currently a Candidate Recommendation Draft in the W3C by the CSSWG) it does seem like none is a valid keyword.