Status: New
Owner: [email protected]
Labels: Type-Defect Priority-Medium jQuery
New issue 1408 by [email protected]: On FF, defer taming of items in a
NodeList until they are accessed
http://code.google.com/p/google-caja/issues/detail?id=1408
jQuery uses the pattern getElementsByTagName('*') because browsers can
respond quickly with all the objects; with our current implementation, this
is exactly wrong, since we then have to tame all objects before returning
them.
On most browsers, NodeLists must tame all elements in advance, since
there's no support for intercepting numeric accesses even with an ES53
proxy.
Recent FF versions have native proxy support, so we can wrap the node list
in a native proxy that lazily tames items.
On other ES5 implementations, when we're taming a particular NodeList n, we
can put getters on TameNodeList.prototype up to n.length.
