Uncaught TypeError: rbuggyQSA.test is not a function at Function.Sizzle

[PiotrIw]

During the context of an insertion after a change in context, the handler of a DOMNodeInserted will get a corrupted Sizzle due to an incomplete array version of rbuggyQSA before it is turned into a pattern.

use Mutation Observers instead of Mutation Events.

solution in
jquery/sizzle#445