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

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

--- Comment #23 from Morrita Hajime <morrita@google.com> ---
Putting aside cross-document thing, I'm OK to take A.

It might be surprising for developers to have such side effect to
out-of-document elements, but I agree that it results better invariant as
Raphael pointed.

For cross document (custom) element adoption, we need to align HTML Imports
definition where external custom elements and many <template>s are defined. And
taking A, this can be discussed in perfectly orthogonal way.

So should the summary of this bug be something like "Out-of-document elements
should be upgraded"?

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Received on Thursday, 4 April 2013 05:53:05 UTC