verify no locale leaks in ESR60 `Intl` APIs
Several new Intl
APIs and enhancements to existing APIs were added during the ESR60 development cycle. We should review the changes to make sure locale info, etc. is not leaked when privacy.resistFingerprinting
is true
. See:
https://bugzilla.mozilla.org/show_bug.cgi?id=1403318
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules
https://bugzilla.mozilla.org/show_bug.cgi?id=1403319 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/formatToParts
https://bugzilla.mozilla.org/show_bug.cgi?id=1386146 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat