This feature is highly needed for Web applications development.
It is not at all clear whether Web Components will be added to the web platform.
It is probably still as likely that XBL2 will be used instead... all is unclear.
At this stage it is pretty clear Shadow DOM is a thing - Chrome has shipped it and there is a working draft at the W3C:
Shadow DOM is starting to gain traction with web developers:
(In reply to Jeff Griffiths (:canuckistani) from comment #2)
> At this stage it is pretty clear Shadow DOM is a thing - Chrome has shipped
> it and there is a working draft at the W3C:
Neither of those mean it is a thing.
Chrome has also filesystem API and there is a W3C draft for it, but it isn't a thing.
However, Shadow DOM is a thing :)
More than a year since last comment!
What about implementing this very useful feature.
There's a lot of good stuff going around Web Components and this is very necessary to go on.
Mozilla has a polifyll for Web Components and it looks like it's desirable to be implemented in core.
However I am not capable of doing this on my own.
Hope my comments starts a discussion on this subject!
People have been working on it, just not in this bug. This bug should probably be duped to bug 811542.
Thanks. I'm glad to see you guys working on it.
I agree this bug should be closed.
*** This bug has been marked as a duplicate of bug 811542 ***