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List:       webkit-dev
Subject:    Re: [webkit-dev] Experimental features review
From:       Maciej Stachowiak <mjs () apple ! com>
Date:       2019-02-14 17:32:01
Message-ID: 3097E8F8-EBC3-456E-AFFE-4E902FA0FCF8 () apple ! com
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> On Feb 14, 2019, at 9:01 AM, Michael Catanzaro <mcatanzaro@igalia.com> wrote:
> 
> On Wed, Feb 13, 2019 at 9:16 PM, Simon Fraser <simon.fraser@apple.com> wrote:
> > For these two, we now have them on by default because we think they are ready to \
> > ship. They still exist as experimental features so that people can turn them off \
> > for regression testing, but is the policy now to move them back to Debug features \
> > at this stage?
> 
> Well, I'm really not sure, other than that the feature is no longer supposed to be \
> experimental once it's ready to be on by default. 
> I notice there is a new class of features called internal features:
> https://trac.webkit.org/changeset/235921/webkit. Perhaps that would suffice for \
> regression testing?

I think this approach is needlessly confusing. For many features, there's likely to \
be a period where the default flips, but it's still useful for it to be switchable. \
Either for debugging, or because it hasn't shipped in products yet and it is useful \
to compare. It would be sad if flags disappeared the moment the default flips, and \
likewise sad if they moved to a different menu as soon as the default flips.

(As an aside, I kind of hate experimental features being a menu like it is in Safari. \
Other browsers have more readable and persistent UI for this, like a special page or \
a settings pane. They also tend to have both default-on and default-off flags in the \
same place, so you don't get lost on the day the default flips.) \
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