[Bug 27122] MutationObserver.observe(node, {}) should throw

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27122

--- Comment #16 from Olli Pettay <bugs@pettay.fi> ---
"If method is not a method, throw a SyntaxError exception."

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Received on Wednesday, 22 October 2014 11:50:22 UTC