ImageBitmap is not useful for getting the data from: it still requires
synchronous use of a canvas to turn in to an ImageData. I would encourage
browser vendors to look at my spec proposal to avoid this:

On 10 February 2016 at 18:29, Gregg Tavares <> wrote:

> Is there a reason in the proposal many of the options default to
> "implementation specific behavior"?
> If the point of ImageBitmap is to get the data (use Image if you don't
> care), then it seems like having any "implementation defined" options,
> especially as the default, is just asking for lurking bugs in websites

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