[webkit-dev] [svg] rect with invalid stroke value

[Cameron McCormack]

Eric Seidel:
> Fill defaults to black, stroke to none.  Whether invalid values are
> ignored or treated as black I don't remember.

Neither!  SVG 1.1 defines a “render up until the error” behaviour (which
most implementations don’t follow):

  http://dev.w3.org/SVG/profiles/1.1F2/publish/implnote.html#ErrorProcessing

This is not going to change in time for SVG 1.1 Second Edition.

> In general the SVG spec is useless in this regard.
>
> http://www.w3.org/TR/SVG/painting.html#FillProperties
> http://www.w3.org/TR/SVG/painting.html#StrokeProperties

I recommend following what SVG Tiny 1.2 says on this, which is that
attributes with unsupported values are ignored:

  http://www.w3.org/TR/SVGTiny12/implnote.html#UnsupportedProps

This is the behaviour that most implementations use, and is what will be
kept for SVG 2.0.

-- 
Cameron McCormack ≝ http://mcc.id.au/