I know that's an old question, though I believe it deserves an answer.
According to the FAQ[1] the 'Inkscape SVG' format only adds features used for editing the SVG in Inkscape. They don't influence the look of the SVG. So there shouldn't be any compatibility issues related to browser interpretation.

Sebastian

[1] https://inkscape.org/en/learn/faq/#What_is_%22Inkscape_SVG%22_as_opposed_to_%22Plain_SVG%22?

On 2 September 2014 at 14:31, john Culleton <John@...1668...> wrote:

I know that some features of Inkscape svg go
beyond the official svg standard and hence may
not be interpreted properly by web browsers etc.

Is there a list of these features somewhere?

--
John Culleton
Wexford Press
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