[whatwg] A question about the drawimage() canvas function

Rik Cabanier cabanier at gmail.com
Fri Mar 1 13:53:31 PST 2013

I just wrote a patch to WebKit to add the throwing behavior :-)
(Not submitted yet though!)

So, with your patch, you would only throw if you use a zero sized canvas
element or would you never throw?

On Fri, Mar 1, 2013 at 1:28 PM, Robert O'Callahan <robert at ocallahan.org>wrote:

> I actually just wrote a patch to implement the spec behavior in Firefox.
> I think changing behavior from "throw" to "not throw" shouldn't have any
> compatibility concerns. I also think that "not throw" is better here than
> throwing; it's simpler to not distinguish "finished downloading but
> decoding failed" from "download in progress (but very slow perhaps)".
> In fact I question why the spec has us throw for zero-sized canvas source.
> It would seem to me to be simpler/better to just not draw and not throw in
> that case also.
> Rob
> --
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