[webkit-dev] Web Components development will continue in a branch in near future

[Andreas Kling]

On Feb 15, 2014, at 4:07 PM, Ryosuke Niwa <rniwa at webkit.org> wrote:

> Hi all,
> 
> Now that we've removed all of the existing shadow DOM implementations from trunk in http://trac.webkit.org/changeset/164131, I'm intending to work on new web components implementations in a branch based on the feedback Apple has given on public-webapps and www-style in near future, probably starting with custom elements.
> 
> I'd like to implement them in a branch to not inadvertently introduce performance regressions.  The old implementation on trunk resulted in 5% overall slowdown in the page load time but we didn't quantify that until we removed the feature entirely last year.  That's probably because the feature was added over years as a pile of small changesets each of which introduced immeasurably small performance regressions.  Development in a branch allows a faithful performance comparison between the two.

This is great news!

All jokes aside, these are exciting features, but it’s important that we’re honest with ourselves about overall engine impact.

-Kling
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