[whatwg] CanvasRenderingContext2D::createPattern and partially loaded images

Ian Hickson ian at hixie.ch
Thu Apr 30 15:02:48 PDT 2009

On Fri, 8 Aug 2008, Eric Seidel wrote:
> http://www.whatwg.org/specs/web-apps/current-work/#createpattern
> Notes that: The first argument gives the image to use as the pattern 
> (either an HTMLImageElement or an HTMLCanvasElement). Modifying this 
> image after calling the createPattern() method must not affect the 
> pattern.
> What does this mean for images which are not yet fully loaded from the
> network?

Per the spec, if the image argument is an HTMLImageElement object whose 
complete attribute is false, then the implementation must raise an 

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