[Bug 24115] Introduce CSS.isValidSelector()


--- Comment #8 from Simon Pieters <simonp@opera.com> ---
Good points, and nice to see improvements in Gecko. :-)

Looking at some more data, it looks like in
http://ejohn.org/files/selectors.html the invalid entries are in minority of
the total usage, about 5-6%. This was in 2008, I don't know if there's a newer
statistics. But it occurs to me that the performance problem could be solved by
adding native support for :visible and :hidden.

Is there a Web page that has the performance problem that I can look at?

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Received on Wednesday, 18 December 2013 21:06:06 UTC