This appears to be an issue with scale expanding itself in place, even though the transform should make that unnecessary.
A second thing here, probably deserving of its own ticket, is the fact that you get all the vendor prefixes for transform in each vendor's keyframe declaration, when you really only need (optionally) that vendor's and the unprefixed one.
From this sample:
I get output like:
This appears to be an issue with
scale
expanding itself in place, even though thetransform
should make that unnecessary.A second thing here, probably deserving of its own ticket, is the fact that you get all the vendor prefixes for
transform
in each vendor'skeyframe
declaration, when you really only need (optionally) that vendor's and the unprefixed one.