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[Bug 18732] [Custom]: element upgrade algorithm does not preserve attributes, event listeners, references

From: <bugzilla@jessica.w3.org>
Date: Wed, 29 Aug 2012 21:29:32 +0000
Message-Id: <E1T6ppM-00016s-8a@jessica.w3.org>
To: public-webapps-bugzilla@w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=18732

--- Comment #18 from Olli Pettay <bugs@pettay.fi> 2012-08-29 21:29:31 UTC ---
(In reply to comment #17)
> I meant to echo my original example where the user has done this:
> 
> x = document.querySelector("x-awesome");
> x.addEventListener("onclick", awesomeClick);


Well, in that case the default listener would be fine.
And btw, it is click, not onclick ;)

There is the upgrade event, which dev could use to add necessary listeners.
In fact, I'd say listener shouldn't added to the element before it is the
right kind of element (document.register is called).

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