Thanks Michal - but I'm a little confused.
Dan is asking which milestones you would like to run a 1% experiment on
(or if you're planning to run an Origin Trial - and it looks like you
aren't) to flush out any compat issues. Are you saying you would like to
launch in M151, or start the 1% experiment in 151? If the former, for
how many milestones (this is Dan's question)?
On 6/23/26 11:00 a.m., 'Michał Hoffmann' via blink-dev wrote:
The planned timeline is a usual finch deployment with a full release
in M151. The experiment for 50% of Canary+Dev+Beta is already up and
running for some time with no breakages detected.
I was asked for an explicit I2E (a thread mentioned in the summary)
before experimenting on stable. The usual rollout is planned, however
since the change is Incognito only I wonder if starting with more than
1% of stable would reveal more about the possible effects of the
feature. If so - I assume I'd need more approvals from owners there.
Let me know what's the best approach for you
Michał
On Monday, June 22, 2026 at 8:52:52 PM UTC+2 Dan Clark wrote:
Can you clarify the planned timeline for the experiment? Is my
understanding correct that the idea is to roll this out via finch,
rather than asking people to opt-in to an Origin Trial?
-- Dan
On Thursday, June 18, 2026 at 6:27:57 AM UTC-7 Chromestatus wrote:
*Contact emails*
[email protected], [email protected]
*Explainer*
https://github.com/explainers-by-googlers/static-storage-quota
*Specification*
/No information provided/
*Summary*
Fixes a bug in the predictable-storage-quota that allows
Incognito mode to be detected. A change introduced recently to
Stable, buckets the result of the StorageManager's estimate
API for sites that do not have unlimited storage permission to
max(10Gib, ceil(actual_quota_in_Gib)) + usage. However, in
incognito mode, the actual quota value is based on a fraction
of available RAM, instead of the disk space - providing an
Incognito detection surface. This change fixes the value of
this API for Incognito Mode to the maximal bucket of: usage +
10Gib. Discussion on the original feature available here:
https://groups.google.com/a/chromium.org/g/blink-dev/c/7q0YGQNVkjs/m/mpYkQVWpAQAJ
This is a new Chromestatus in place of an original PSA, as
this launch should start with an I2E to ensure the breakage
risk is properly addressed. See
https://groups.google.com/a/chromium.org/g/blink-dev/c/00aHBCiUGzo/m/B0Dq06SFAQAJ.
*Blink component*
Blink>Storage>Quota
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EStorage%3EQuota%22>
*Web Feature ID*
storage-manager <https://webstatus.dev/features/storage-manager>
*Search tags*
incognito <http:///features#tags:incognito>, quota
<http:///features#tags:quota>, storage
<http:///features#tags:storage>
*TAG review*
/No information provided/
*TAG review status*
Pending
*Goals for experimentation*
None
*Risks*
*Interoperability and Compatibility*
/No information provided/
/Gecko/: No signal
/WebKit/: No signal
/Web developers/: No signals
/Other signals/:
*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?
/No information provided/
*Ongoing technical constraints*
/No information provided/
*Debuggability*
/No information provided/
*Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?*
No
*Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
No
*Flag name on about://flags*
/No information provided/
*Finch feature name*
kIncognitoStaticStorageQuota
*Requires code in //chrome?*
False
*Tracking bug*
https://issues.chromium.org/issues/464484739
*Estimated milestones*
No milestones specified
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5117411264167936?gate=5943068999155712
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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