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Then it must be a webkit bug that gives you a non-identity transform with one value. I've read that part of the spec a few times and couldn't figure out what's supposed to happen with one value.
– Michael Mullany
Commented Feb 23, 2013 at 20:33
I just worked through the algorithm from the spec and a single value is valid, so this is indeed a Firefox bug. The spec says - for an input value C, where C<1, and an input array of [V0...Vn-1] find an index k where k/n <= C < (k+1)/n. C' (the output value) is Vk. And where C=1, define k=n-1. In the case where the array has a single value, this reduces to k<=C<k+1. The sole array index we have (0) is a valid solution to this constraint. And where C=1, define k=0. Output values should be whatever the single array value is. Firefox bug - not Webkit.
– Michael Mullany
Commented Feb 27, 2013 at 15:56
Ok. Filed it as Bug 845985.
– Michael Mullany
Commented Feb 27, 2013 at 21:24

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