[Bug 24115] Introduce CSS.isValidSelector()

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

--- Comment #11 from Anne <annevk@annevk.nl> ---
What is the ETA on that? Subclassing might come quite soon, and we'd need this
if we want to stop throwing for query/queryAll, which seems like a good idea.

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Received on Monday, 14 March 2016 16:02:22 UTC