[Bug 24115] Introduce CSS.isValidSelector()

https://www.w3.org/Bugs/Public/show_bug.cgi?id=24115

--- Comment #4 from Simon Pieters <simonp@opera.com> ---
I think a problem with CSS.isValidSelector is that a selector might be valid in
query() but not in a style sheet.

Maybe instead of throwing query() could invoke an error callback or some such?

Is the performance problem with exceptions something that can't be fixed?

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Received on Wednesday, 18 December 2013 09:53:08 UTC