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

Where in the spec text does it say "transformList" can be "none"?

transformList is a string. It's what being passed in. The spec says it can be an empty string, "none", or a valid definition.

That string is passed into the parser. The spec says "none" is valid, because the grammar for the CSS transform property explicitly states it as a valid value, which is what the parser needs to use. so if none is passed in, none will be spat out by the parser (and not a failure).