> On 30 Apr 2016, at 19:07, Rik Cabanier <caban...@gmail.com> wrote:
> It would be ideal if we can specify that the canvas backing store is in the 
> device profile.

How would the website know what profile this is? If it's just a boolean 
setting, then I don't see how it would make it possible to use such canvas 
correctly, e.g. convert a XYZ color to canvas' color space.

Is device profile exposed somewhere in the platform yet? If not, I think it'd 
be better to leave it hidden to avoid adding more fingerprinting vectors.

Setting the canvas to a website-supplied profile seems OK to me. It'd mean the 
website already knows how to convert colors to the given colorspace, and the 
same profile could be passed back by toDataURL().

Kind regards, Kornel

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