For the same reasons outlined in the previous intent
<https://groups.google.com/a/chromium.org/g/blink-dev/c/7q0YGQNVkjs/m/-iee67QrBQAJ>,
can you create a new Chromestatus entry that is not a "web developer
facing change" and re-send as an Intent to Experiment?
(Michał and I synced out this offline, but sending to the list to avoid
any confusion - the bugfix here has non-zero risk so we should run an
experiment to increase our confidence that it's safe).
thanks,
Mike
On 5/5/26 7:47 a.m., Chromestatus wrote:
*Contact emails*
[email protected], [email protected]
*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
*Blink component*
Blink>Storage>Quota
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EStorage%3EQuota%22>
*Web Feature ID*
/No information provided/
*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/
*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
*Tracking bug*
https://issues.chromium.org/issues/464484739
*Estimated milestones*
Shipping on desktop 151
Shipping on Android 151
Shipping on WebView 151
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5143175657291776
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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