On 6/25/24 4:23 PM, Stefan Zager wrote:
On Tue, Jun 25, 2024 at 7:24 AM Mike Taylor <miketa...@chromium.org>
wrote:
Thanks for creating this - can you clarify how long you would like
this deprecation trial to last?
That will depend on the response from site owners and the level of
uptake, but the initial period will be one year.
Typically it is feature teams that determine the length of a deprecation
trial, rather than site owners - based on webcompat analysis, which may
include outreach to known affected sites. Per
https://www.chromium.org/blink/launching-features/#deprecation-trial -
deprecation trials normally only last 6 milestones, and are renewed in 6
milestone increments. However, exceptions are possible with 3 LGTMs.
If you think 1 year is the correct length for the ecosystem, can you
please provide justification for an exception here?
On 6/24/24 7:52 PM, Stefan Zager wrote:
Contact emails
sza...@chromium.org
Explainer
None
Specification
https://github.com/w3c/csswg-drafts/pull/9699
Design docs
https://docs.google.com/document/d/1AcnDShjT-kEuRaMchZPm5uaIgNZ4OiYtM4JI9qiV8Po/edit
Summary
Create a reverse origin trial to allow sites to opt out of the
"Standardized CSS Zoom" feature
<https://chromestatus.com/feature/5198254868529152>. Existing
sites may rely on chromium's legacy non-spec-compliant behavior
of the CSS zoom property. This origin trial will allow individual
sites to opt out of the new spec-compliant behavior, to allow
them time to migrate to the newly-specified behavior.
Blink component
Blink>Paint
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EPaint>
TAG review
None
TAG review status
Pending
Risks
Interoperability and Compatibility
This is meant to mitigate the compatibility risks of the
Standardized CSS Zoom feature. The origin trial will have a
limited duration, so sites that participate in the origin trial
but are not updated to support the new behavior will still break
when the origin trial ends.
WebView application risks
See Interoperability and Compatibility risks
Goals for experimentation
To provide a reprieve for sites that are broken by the new zoom
behavior.
Ongoing technical constraints
None
Debuggability
None
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android
WebView)?
Yes
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
The legacy chromium-specific behavior is tested by
chromium-internal tests, but not WPT.
Flag name on chrome://flags
StandardizedBrowserZoom
Finch feature name
StandardizedBrowserZoom
Requires code in //chrome?
False
Estimated milestones
M128
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5198254868529152
Links to previous Intent discussions
https://groups.google.com/a/chromium.org/g/blink-dev/c/W8j6RKDeRoM/m/FyCKOAG9AAAJ
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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