[whatwg] proposal: Add support for masking to canvas

Ian Hickson ian at hixie.ch
Tue Jul 16 12:57:33 PDT 2013

On Fri, 1 Feb 2013, Cameron McCormack wrote:
> On 30/01/13 6:28 PM, Ian Hickson wrote:
> > That's weird. heycam, can you elaborate on this? The addHitRegion() 
> > case in particular never makes sense to be called without a dictionary 
> > containing at least one member. Do we have to allow it?
> This is to encourage (require, really) API design that allows the 
> dictionary object to be not specified at all.  Remember that all 
> dictionary members can be "not specified" anyway.
> Do you want addHitRegion() to throw just like addHitRegion({}) would 
> throw? That will happen if you already have wording to say that 
> addHitRegion({}) will throw.

Ah, ok. Fixed. Thanks.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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