[whatwg] Compatibility problems with HTML5 Canvas spec.

Geoffrey Garen ggaren at apple.com
Wed Sep 26 17:04:10 PDT 2007

> We can certainly fix it, I'm just wondering what makes the most  
> sense to do so.  Like I said, there's a patch sitting in our  
> (Mozilla's) bugzilla that implements the spec-compatible behaviour.   
> I'd be happy to fix it and relnote that it was fixed, while  
> providing a simple workaround (which is basically calling  
> beginPath() after calling fill/strokRect etc.)

I believe that fixing Firefox/Gecko to match the spec is the best  
solution. Safari 3 beta has already shipped with behavior that  
conforms to the spec, with substantial developer evangelism about this  
issue. (See, e.g., this recently published tech note: http://developer.apple.com/technotes/tn2007/tn2177.html#CANVAS) 
. Reversing the spec, and re-reversing our course to return to Safari  
2 behavior, would be terribly confusing. (I'm not even sure that it's  
possible at this late hour.)


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