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Spec
No tag review because this is a relatively minor change in-line with other SVG presentation attribute changes (e.g., width, height, etc).
Summary
SVG has historically used attributes to specify transforms, whereas CSS uses properties. This change unifies the two systems, including syntax, of transform, gradientTransform, and patternTransform. This “attribute as property” concept is known as a "presentation attribute" and is already the case for many SVG attributes we support.
Transform-as-attribute and transform-as-property was previously supported, with the latter overriding the former (modulo
crbug.com/415950.) Hence this constitutes the final piece that enters the attribute into the cascade proper.
Is this feature supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?
Yes
Interoperability and Compatibility Risk
This change makes us match Gecko and the spec. It is unlikely to break existing content.
OWP launch tracking bug
Entry on the feature dashboard
No entry because this is a relatively small change.