[Bug 21485] [Custom]: Consider possible candidates of element upgrade

https://www.w3.org/Bugs/Public/show_bug.cgi?id=21485

--- Comment #11 from Scott Miles <sjmiles@chromium.org> ---
I apologize, I was imprecise above.

There can be custom elements inside of 'imported' documents. Do imported
documents share the element registry? 

If so, then I suppose there is no problem with transferring nodes from imported
document, or cloning nodes from imported document, and inserting them into the
main document.

Presumably, template stamping is a version of subtree cloning. Nodes in a
template are in a document fragment, I believe. Does the fragment share the
element registry? The template may also be in a linked document, so the content
may be twice removed.

If the registries are not shared, then custom elements would have to be
'upgraded' on insertion into the new document.

I hope that's clearer.

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Received on Monday, 1 April 2013 18:26:11 UTC