Update: the CSSWG just resolved
<https://github.com/w3c/csswg-drafts/issues/5623#issuecomment-1646125737>
to specify zoom, so please consider this intent retracted.

On Thu, Jun 22, 2023 at 8:10 AM Chris Harrelson <chris...@chromium.org>
wrote:

> Hi Robin,
>
> This intent-to-ship is currently on hold while I investigate further the
> use cases and compatibility risk.
>
> On Thu, Jun 22, 2023 at 8:09 AM Robin Haegeman <ro...@3daimtrainer.com>
> wrote:
>
>> What's the latest on this topic? Is this still an ongoing discussion or
>> is it decided to become deprecated from Chrome 117 onwards? Our application
>> relies heavily on it so ideally we have at least a couple of months to
>> adapt to this (and have some warnings in the console first a couple of
>> releases before). Chrome 117 seems rather fast in my opinion to just drop
>> support for a working CSS property, even if the usage is low.
>> On Monday, 24 April 2023 at 23:09:35 UTC+2 Malte Nuhn wrote:
>>
>>> Not to our knowledge, but we’ll dig deep into this.
>>>
>>> However, I can confirm that simply using transform: scale is not one of
>>> them: I’ve just done this in our app, and immediately run into the same
>>> issues we’d seen the last time we tried:  scroll performance is awful,
>>> there is scroll jumpiness (especially when zoomed in deeply, probably
>>> something rounding-related), and pixelation. It basically defeats the
>>> purpose of working zoomed in .
>>>
>>> There may be ways to work around this we can implement it, or other
>>> approaches altogether; right now we don’t know what those would be but as I
>>> indicated we’ll dig in and report back. (Likewise, if anyone has ideas we
>>> can try them pretty easily).
>>>
>>>
>>>
>>> On 24 Apr 2023, at 17:47, Yoav Weiss <yoav...@chromium.org> wrote:
>>>
>>> Are there alternative ways to achieve the same effect that don't suffer
>>> from blurriness or other UX issues?
>>>
>>> On Mon, Apr 24, 2023 at 6:25 PM Malte Nuhn <malte...@gmail.com> wrote:
>>>
>>>> Similarly, online web design and authoring tools (like Framer, or our
>>>> OSS project at Utopia) rely on the zoom property for working when "zoomed
>>>> in". In Firefox (w/ scale as fallback) the result is a degraded (eg blurry)
>>>> experience - sometimes severely so, especially when shadows, serif fonts,
>>>> and SVGs are involved.
>>>>
>>>> In tools like these, the standard pattern is to use transform: scale
>>>> when the user is zoomed out ( < 100%) in the UI, and zoom when the user is
>>>> zoomed in, for maximum fidelity.
>>>>
>>>> FWIW I only this week discovered that zoom property removal was (back)
>>>> on the agenda and imminent. I suspect authors of the other tools are
>>>> similarly unaware.
>>>> On Monday, April 24, 2023 at 3:24:39 PM UTC+1 noam.h...@gmail.com
>>>> wrote:
>>>>
>>>>> Thanks for sharing Noam, that's good to know! So is Excel Online
>>>>>> unsupported or completely broken for Firefox users then?
>>>>>
>>>>>
>>>>> The feature is disabled for Firefox. Since it represents a very small
>>>>> fraction of our users it is less of a concern.
>>>>>
>>>>> On Mon, Apr 24, 2023 at 5:04 PM Rick Byers <rby...@chromium.org>
>>>>> wrote:
>>>>>
>>>>>>
>>>>>> On Mon, Apr 24, 2023 at 9:50 AM Noam Helfman <noam.h...@gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> I would like to point out that Microsoft Excel Online utilizes zoom
>>>>>>> CSS property heavily to perform the Excel grid zoom operations.
>>>>>>> Removing it would completely break our zoom functionality in the
>>>>>>> product and impact 100s of millions of users.
>>>>>>>
>>>>>>
>>>>>> Thanks for sharing Noam, that's good to know! So is Excel Online
>>>>>> unsupported or completely broken for Firefox users then?
>>>>>>
>>>>>> On Mon, Apr 24, 2023 at 3:05 AM Christoph Nakazawa <
>>>>>> christo...@gmail.com> wrote:
>>>>>>
>>>>>>> In a previous response it was stated that the removal of this
>>>>>>> property leads to only a small amount of code being removed, which I 
>>>>>>> assume
>>>>>>> also means that there is little impact on reducing complexity in the
>>>>>>> engine. Maybe I missed it but is there an in-depth explanation of the
>>>>>>> intention and impact behind this change?
>>>>>>
>>>>>>
>>>>>> From my perspective as an outside observer / approver, the strongest
>>>>>> argument I see for doing this is cross-browser interoperability. That 
>>>>>> could
>>>>>> also be achieved by getting a specification and tests written and support
>>>>>> added to Firefox. I don't personally think we should accept the status 
>>>>>> quo
>>>>>> of Chrome supporting this unspecified API indefinitely as it doesn't meet
>>>>>> our standards
>>>>>> <https://www.chromium.org/blink/guidelines/web-platform-changes-guidelines/>
>>>>>> for "plausible interoperability" between engines. It looks like +Rossen 
>>>>>> on
>>>>>> the Edge team started an effort to specify the feature
>>>>>> <https://github.com/atanassov/css-zoom>, but it stalled 8 years ago.
>>>>>> If this feature is important to Microsoft Office, then one option could 
>>>>>> be
>>>>>> for the Edge team to complete that work.
>>>>>>
>>>>>>
>>>>>>> On Thursday, April 20, 2023 at 10:42:17 PM UTC+3 Chris Harrelson
>>>>>>> wrote:
>>>>>>>
>>>>>>>> On Thu, Apr 20, 2023 at 12:01 PM Alex Russell <
>>>>>>>> sligh...@chromium.org> wrote:
>>>>>>>>
>>>>>>>>> I agree that this is probably too risky right now. Are you willing
>>>>>>>>> to modify the plan you posted to gate #4 on a UKM analysis and/or 
>>>>>>>>> driving
>>>>>>>>> use below a negotiated threshold, Chris?
>>>>>>>>
>>>>>>>>
>>>>>>>> I can do the UKM analysis if that's needed. As for threshold, I
>>>>>>>> think a randomized analysis percentage multiplied by the current 
>>>>>>>> UseCounter
>>>>>>>> is good enough if the result is below some "safe enough" threshold. The
>>>>>>>> review of 62 sites, plus the fact that Firefox does not support this
>>>>>>>> feature, already makes me much more positive on success among the sites
>>>>>>>> that are measured by use counters, and some randomized UKM analysis 
>>>>>>>> could
>>>>>>>> do even more.
>>>>>>>>
>>>>>>>> On Thursday, April 20, 2023 at 11:15:32 AM UTC-7 Chris Harrelson
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>> Comments below, but here is a concrete shipping plan proposal:
>>>>>>>>>>
>>>>>>>>>> 1. Blog post describing what is happening, why, and how to fix
>>>>>>>>>> your code.
>>>>>>>>>> 2. Start a deprecation for 3 milestones (M114-116), with a
>>>>>>>>>> devtools console warning. Notify enterprises and webview clients of 
>>>>>>>>>> the
>>>>>>>>>> deprecation.
>>>>>>>>>> 3. In parallel with #2: turn it off now via finch for canary/dev,
>>>>>>>>>> then later beta, to see if we get bug reports.
>>>>>>>>>> 4. Assuming no bug reports that raise new concerns, ship the
>>>>>>>>>> change in M117.
>>>>>>>>>>
>>>>>>>>>> On Thu, Apr 20, 2023 at 9:01 AM Rick Byers <rby...@chromium.org>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> On Wed, Apr 19, 2023 at 6:53 PM Chris Harrelson <
>>>>>>>>>>> chri...@chromium.org> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Mike said: *"It would also be good to go through all
>>>>>>>>>>>> duplicates and "See Also" bugs linked at
>>>>>>>>>>>> https://bugzilla.mozilla.org/show_bug.cgi?id=390936
>>>>>>>>>>>> <https://bugzilla.mozilla.org/show_bug.cgi?id=390936> and see how 
>>>>>>>>>>>> we fare
>>>>>>>>>>>> with a build that has zoom disabled."*
>>>>>>>>>>>>
>>>>>>>>>>>> Good idea. I checked all 37 of the sites referenced from that
>>>>>>>>>>>> issue. I found only 3 that were even somewhat broken, and only 2 
>>>>>>>>>>>> where
>>>>>>>>>>>> there was something substantial (an "8-ball" image that was too 
>>>>>>>>>>>> big, and a
>>>>>>>>>>>> facebook login that was cut off at some viewport sizes). Most 
>>>>>>>>>>>> sites didn't
>>>>>>>>>>>> have any zoom at all.
>>>>>>>>>>>>
>>>>>>>>>>>> I also updated the "use cases" section with more use cases
>>>>>>>>>>>> found by reviewing the sites.
>>>>>>>>>>>>
>>>>>>>>>>>> Yoav said:* "Is it possible to also expose the usecounter as
>>>>>>>>>>>> UKM, and see the usage distribution? Given the high usage 
>>>>>>>>>>>> percentage, it
>>>>>>>>>>>> can be reassuring to see that a) No large sites get broken by this 
>>>>>>>>>>>> b) Long
>>>>>>>>>>>> tail sampling from UKM matches what y'all saw in HA"*
>>>>>>>>>>>>
>>>>>>>>>>>> It's possible. Based on the data I've provided (including
>>>>>>>>>>>> response to Mike above), do you think it's needed?
>>>>>>>>>>>>
>>>>>>>>>>>> On Mon, Apr 17, 2023 at 2:39 PM Rick Byers <rby...@chromium.org>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> First, you'll have a flag so we can kill-switch it if we see
>>>>>>>>>>>>> any non-trivial breakage in practice, right?
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Already in place. CSSZoom is a base::Feature in addition to a
>>>>>>>>>>>> RuntimeEnabledFeature.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>> WebView seems particularly risky, perhaps we should separate
>>>>>>>>>>>>> that out and leave it enabled on WebView at least to start?
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> I'm willing to do that as a first step.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>> What about enterprise, likely to be higher risk / needing a
>>>>>>>>>>>>> mitigation strategy?
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> I'll add an enterprise flag for it, and ask for this change to
>>>>>>>>>>>> be highlighted in enterprise release notes. WDYT, good enough?
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Works for me.
>>>>>>>>>>>
>>>>>>>>>>> From the HA analysis, were you able to get any upper bound on
>>>>>>>>>>>>> the fraction of sites with significant (i.e. usability impacting) 
>>>>>>>>>>>>> breakage?
>>>>>>>>>>>>> Eg. can we spot check 100 pages that hit the counter to see if 
>>>>>>>>>>>>> any look
>>>>>>>>>>>>> really broken? Alternately the UKM analysis Yoav suggests could 
>>>>>>>>>>>>> help. I've
>>>>>>>>>>>>> been planning on figuring out how to do a UKM usage distribution 
>>>>>>>>>>>>> analysis -
>>>>>>>>>>>>> this might make a good candidate.
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> I spot checked 62 sites from HTTPArchive and from the Mozilla
>>>>>>>>>>>> bug. In my view, none were terribly broken, and almost all were 
>>>>>>>>>>>> unaffected
>>>>>>>>>>>> or had trivial changes. According to foolip's methodology
>>>>>>>>>>>> <https://sample-size.net/confidence-interval-proportion/> with
>>>>>>>>>>>> N=62 and x=0, that means that we've reduced the risk from the use 
>>>>>>>>>>>> counter
>>>>>>>>>>>> of 0.5% to 0.028%.
>>>>>>>>>>>>
>>>>>>>>>>>> To get to 0.001% I'd need a lot more N, technically speaking.
>>>>>>>>>>>>
>>>>>>>>>>>> However, in basically all of the cases zoom was applied either
>>>>>>>>>>>> to very few elements or to the body; in the latter the site still 
>>>>>>>>>>>> renders
>>>>>>>>>>>> fine (because browser zoom uses the same technique), and for the 
>>>>>>>>>>>> others
>>>>>>>>>>>> it's at best cosmetic in almost all cases.
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> That's great to hear. Given the usage is pretty high and there's
>>>>>>>>>>> at least some uncertainty among developers with how to replace 
>>>>>>>>>>> their use of
>>>>>>>>>>> zoom (Christoph's note), WDYT about doing a blog post warning about 
>>>>>>>>>>> the
>>>>>>>>>>> removal of zoom and showing how to replace it with transforms?
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Sure, I can do that. Note that some sites already put
>>>>>>>>>> -moz-transform and zoom in their style sheet, so there is evidence 
>>>>>>>>>> that
>>>>>>>>>> transform works ok for some use cases.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Also, should we consider a deprecation period with deprecation
>>>>>>>>>>> warnings in the console and available to the reporting API? Or is 
>>>>>>>>>>> that
>>>>>>>>>>> likely to be so noisy with most cases being false positives that it 
>>>>>>>>>>> would
>>>>>>>>>>> be net harmful do you think?
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> A deprecation period makes sense. (Note that Firefox already has
>>>>>>>>>> warnings in their devtools not to use this feature.)
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> On Mon, Apr 17, 2023 at 4:55 PM Morten Stenshorne <
>>>>>>>>>>>>> mste...@chromium.org> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>> Chris Harrelson <chri...@chromium.org> writes:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> > On Sun, Apr 16, 2023 at 11:45 PM Morten Stenshorne <
>>>>>>>>>>>>>> mste...@chromium.org> wrote:
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  Chris Harrelson <chri...@chromium.org> writes:
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  > On Fri, Apr 14, 2023 at 5:09 PM PhistucK <
>>>>>>>>>>>>>> phis...@gmail.com> wrote:
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Any alternatives? I thought there was a section in the
>>>>>>>>>>>>>> intent templates for that...
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  > One alternative for the use case mentioned in my earlier
>>>>>>>>>>>>>> email is to
>>>>>>>>>>>>>> >  > apply a CSS transform instead. This will magnify the
>>>>>>>>>>>>>> subtree visually
>>>>>>>>>>>>>> >  > but not cause a zoom-style layout change.
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  The fact that a CSS transform doesn't affect layout,
>>>>>>>>>>>>>> whereas 'zoom'
>>>>>>>>>>>>>> >  does, means that we'll paginate (fragment) properly with
>>>>>>>>>>>>>> 'zoom', but not
>>>>>>>>>>>>>> >  with transforms, since they are applied after
>>>>>>>>>>>>>> fragmentation [1], causing
>>>>>>>>>>>>>> >  content to be sliced across fragmentainer boundaries, and
>>>>>>>>>>>>>> the actual
>>>>>>>>>>>>>> >  page/column breaks (as far as layout is concerned) are
>>>>>>>>>>>>>> shifted away from
>>>>>>>>>>>>>> >  the fragmentainer edges visually, and will appear in the
>>>>>>>>>>>>>> middle of a
>>>>>>>>>>>>>> >  page/column, for instance.
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  [1] https://www.w3.org/TR/css-break-3/#transforms (never
>>>>>>>>>>>>>> mind the
>>>>>>>>>>>>>> >  example there; it's not too relevant for this discussion,
>>>>>>>>>>>>>> but I can
>>>>>>>>>>>>>> >  provide one if you want)
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> > Agreed that this is a difference. If a developer wants the
>>>>>>>>>>>>>> result to
>>>>>>>>>>>>>> > flow through fragmentation, they'll have to use the second
>>>>>>>>>>>>>> alternative
>>>>>>>>>>>>>> > I suggested.
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> > But in terms of web compat, I don't think this situation is
>>>>>>>>>>>>>> anything
>>>>>>>>>>>>>> > to worry about (e.g. I didn't see any fragmentation when
>>>>>>>>>>>>>> reviewing 25
>>>>>>>>>>>>>> > random sites linked to from chromestatus.com).
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> But as soon as someone prints any of those sites, there'll be
>>>>>>>>>>>>>> fragmentation.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> That said, I couldn't find anything bad on those sites,
>>>>>>>>>>>>>> either. I was
>>>>>>>>>>>>>> thinking that if it's actually okay to replace zoom with a
>>>>>>>>>>>>>> scale
>>>>>>>>>>>>>> transform, we really need authors to make such elements
>>>>>>>>>>>>>> monolithic
>>>>>>>>>>>>>> (because any break point inserted inside a transformed
>>>>>>>>>>>>>> element will more
>>>>>>>>>>>>>> likely than not end up in the middle of some page, rather
>>>>>>>>>>>>>> than at an
>>>>>>>>>>>>>> actual page boundary). So I changed the engine locally to
>>>>>>>>>>>>>> treat zoom !=
>>>>>>>>>>>>>> 1 as monolithic. But that didn't make any of sites that I
>>>>>>>>>>>>>> tried look any
>>>>>>>>>>>>>> worse.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> >  > Another alternative is for the developer to multiply the
>>>>>>>>>>>>>> numbers in
>>>>>>>>>>>>>> >  > their CSS properties via calc + variables.
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  That alternative should always work, but more cumbersome
>>>>>>>>>>>>>> for the
>>>>>>>>>>>>>> >  authors, I suppose?
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> > Yes, a bit more cumbersome, but interoperable across all
>>>>>>>>>>>>>> browser engines.
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  >  On Sat, Apr 15, 2023 at 1:03 AM Chris Harrelson <
>>>>>>>>>>>>>> chri...@chromium.org> wrote:
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Contact emails
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  chri...@chromium.org
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Specification
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  https://developer.mozilla.org/en-US/docs/Web/CSS/zoom
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Summary
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Removes support for the non-standard "zoom" CSS
>>>>>>>>>>>>>> property. This CSS property causes computed lengths for an 
>>>>>>>>>>>>>> element to be
>>>>>>>>>>>>>> multiplied by
>>>>>>>>>>>>>> >  >  the specified zoom factor.
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Blink component
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Blink>CSS
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  TAG review
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  None
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  TAG review status
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Not applicable
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Risks
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Interoperability and Compatibility
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  This feature is only available in Webkit and
>>>>>>>>>>>>>> Blink-based browsers, and has been present in Chrome since the 
>>>>>>>>>>>>>> beginning.
>>>>>>>>>>>>>> Usage is a little above
>>>>>>>>>>>>>> >  >  0.5% of page loads:
>>>>>>>>>>>>>> https://chromestatus.com/metrics/feature/timeline/popularity/3578
>>>>>>>>>>>>>> However, research shows that sites in HTTPArchive
>>>>>>>>>>>>>> >  >  triggering the feature mostly don't even seem to use
>>>>>>>>>>>>>> it, and those that do appear to always use it in a way that 
>>>>>>>>>>>>>> works fine
>>>>>>>>>>>>>> without zoom applied
>>>>>>>>>>>>>> >  >  - worst case, just a very minor change to the size of a
>>>>>>>>>>>>>> tiny number of UI elements, but the UX is basically the same. 
>>>>>>>>>>>>>> See:
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> https://docs.google.com/document/d/1cmbXpjAcXAht2ufi7bNKy-rbVNveqaf0UzeYg_DIMNA/edit#
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Gecko: Shipped/Shipping (Firefox never supported the
>>>>>>>>>>>>>> feature.)
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  WebKit: No signal (
>>>>>>>>>>>>>> https://github.com/WebKit/standards-positions/issues/170)
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Web developers: Some web developers like the feature,
>>>>>>>>>>>>>> in particular for the use case of zooming in content in a 
>>>>>>>>>>>>>> legible way with
>>>>>>>>>>>>>> responsive
>>>>>>>>>>>>>> >  >  design. See comments regarding that in this issue;
>>>>>>>>>>>>>> https://github.com/w3c/csswg-drafts/issues/5623
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Other signals: The CSSWG has decided to not specify
>>>>>>>>>>>>>> this feature: https://github.com/w3c/csswg-drafts/issues/5623
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Ergonomics
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  See "other views" section.
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Activation
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  N/A
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Security
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  None
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  WebView application risks
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Does this intent deprecate or change behavior of
>>>>>>>>>>>>>> existing APIs, such that it has potentially high risk for Android
>>>>>>>>>>>>>> WebView-based applications?
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Maybe. WebView-based apps might use this feature.
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Debuggability
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Sites should be able to see that zoom no longer applies
>>>>>>>>>>>>>> to elements in devtools, though there is no warning planned.
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Will this feature be supported on all six Blink
>>>>>>>>>>>>>> platforms (Windows, Mac, Linux, Chrome OS, Android, and Android 
>>>>>>>>>>>>>> WebView)?
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Yes
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Is this feature fully tested by web-platform-tests?
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  No
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Flag name
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  CSSZoom
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Requires code in //chrome?
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  False
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Sample links
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  https://output.jsbin.com/yimuwax
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Estimated milestones
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >   Shipping on desktop  114
>>>>>>>>>>>>>> >  >   DevTrial on desktop  114
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >   Shipping on Android  114
>>>>>>>>>>>>>> >  >   DevTrial on Android  114
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >   Shipping on WebView  114
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Anticipated spec changes
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Open questions about a feature may be a source of
>>>>>>>>>>>>>> future web compat or interop issues. Please list open issues 
>>>>>>>>>>>>>> (e.g. links to
>>>>>>>>>>>>>> known github
>>>>>>>>>>>>>> >  >  issues in the project for the feature specification)
>>>>>>>>>>>>>> whose resolution may introduce web compat/interop risk (e.g., 
>>>>>>>>>>>>>> changing to
>>>>>>>>>>>>>> naming or
>>>>>>>>>>>>>> >  >  structure of the API in a non-backward-compatible way).
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  None
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Link to entry on the Chrome Platform Status
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  https://chromestatus.com/feature/6535859207143424
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  Links to previous Intent discussions
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  This intent message was generated by Chrome Platform
>>>>>>>>>>>>>> Status.
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  --
>>>>>>>>>>>>>> >  >  You received this message because you are subscribed to
>>>>>>>>>>>>>> the Google Groups "blink-dev" group.
>>>>>>>>>>>>>>
>>>>>>>>>>>>> >  >  To unsubscribe from this group and stop receiving emails
>>>>>>>>>>>>>> from it, send an email to blink-dev+...@chromium.org.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>> >  >  To view this discussion on the web visit
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw_2izF%2BTzHvALsKSxD_uLds%2BPAD7fLtvpX4Cwe7sTwU7g%40mail.gmail.com
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >  >  --
>>>>>>>>>>>>>> >  >  You received this message because you are subscribed to
>>>>>>>>>>>>>> the Google Groups "blink-dev" group.
>>>>>>>>>>>>>>
>>>>>>>>>>>>> >  >  To unsubscribe from this group and stop receiving emails
>>>>>>>>>>>>>> from it, send an email to blink-dev+...@chromium.org.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>> >  >  To view this discussion on the web visit
>>>>>>>>>>>>>> >  >
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABc02_%2Br8k-q-bKWGFKxgNbSy97UKGf7VUSMnrnURBJHor-x_w%40mail.gmail.com
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  --
>>>>>>>>>>>>>> >  Morten Stenshorne, Software developer,
>>>>>>>>>>>>>> >  Blink/Layout, Google, Oslo, Norway
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>> >  --
>>>>>>>>>>>>>> >  You received this message because you are subscribed to
>>>>>>>>>>>>>> the Google Groups "blink-dev" group.
>>>>>>>>>>>>>>
>>>>>>>>>>>>> >  To unsubscribe from this group and stop receiving emails
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>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>> >  To view this discussion on the web visit
>>>>>>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/87pm83knwv.fsf%40bud.servebeer.com
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>> >
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> Morten Stenshorne, Software developer,
>>>>>>>>>>>>>> Blink/Layout, Google, Oslo, Norway
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>>>> Google Groups "blink-dev" group.
>>>>>>>>>>>>>>
>>>>>>>>>>>>> To unsubscribe from this group and stop receiving emails from
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>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>> To view this discussion on the web visit
>>>>>>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/87leiqkz3o.fsf%40bud.servebeer.com
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
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>>>>>>>>>>>>>
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>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>> To view this discussion on the web visit
>>>>>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY-XO6eyfHLNFJGf2RNL%3D8-4i2%3DoNCjK6X5MfB9ZCOaUfw%40mail.gmail.com
>>>>>>>>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY-XO6eyfHLNFJGf2RNL%3D8-4i2%3DoNCjK6X5MfB9ZCOaUfw%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>>>>>>>>>>>> .
>>>>>>>>>>>>>
>>>>>>>>>>>>
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>>>>>>>>>> To view this discussion on the web visit
>>>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY8khSiw2o7dZ5S6qUjQsmdJ6XUb49q_a5NH1Pn7%2BmyA%3Dw%40mail.gmail.com
>>>>>>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY8khSiw2o7dZ5S6qUjQsmdJ6XUb49q_a5NH1Pn7%2BmyA%3Dw%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>>>>>>>>>> .
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>> You received this message because you are subscribed to the Google
>>>>>>>>> Groups "blink-dev" group.
>>>>>>>>>
>>>>>>>> To unsubscribe from this group and stop receiving emails from it,
>>>>>>>>> send an email to blink-dev+...@chromium.org.
>>>>>>>>> To view this discussion on the web visit
>>>>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/4c24d7fe-7e68-4b8f-b16c-814d68667ac2n%40chromium.org
>>>>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/4c24d7fe-7e68-4b8f-b16c-814d68667ac2n%40chromium.org?utm_medium=email&utm_source=footer>
>>>>>>>>> .
>>>>>>>>>
>>>>>>>>
>>>>>
>>>>> --
>>>>> Noam Helfman
>>>>>
>>>>
>>>> --
>>>> You received this message because you are subscribed to the Google
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>>>> To unsubscribe from this group and stop receiving emails from it, send
>>>> an email to blink-dev+...@chromium.org.
>>>> To view this discussion on the web visit
>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/e87d72f5-6e0c-4ee9-9b7d-6d64d39f9ec9n%40chromium.org
>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/e87d72f5-6e0c-4ee9-9b7d-6d64d39f9ec9n%40chromium.org?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>>
>>> --
>> You received this message because you are subscribed to the Google Groups
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>> To unsubscribe from this group and stop receiving emails from it, send an
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>> To view this discussion on the web visit
>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/0b28d3ef-f527-4293-a8e1-fe72bda3e963n%40chromium.org
>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/0b28d3ef-f527-4293-a8e1-fe72bda3e963n%40chromium.org?utm_medium=email&utm_source=footer>
>> .
>>
>

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