#30683: Properties in dom/locales/$lang/chrome/ allow detecting user locale -------------------------------------------------+------------------------- Reporter: gk | Owner: tbb- | team Type: defect | Status: | needs_review Priority: High | Milestone: Component: Applications/Tor Browser | Version: Severity: Normal | Resolution: Keywords: tbb-fingerprinting-locale, | Actual Points: TorBrowserTeam201909 | Parent ID: | Points: 0.25 Reviewer: | Sponsor: -------------------------------------------------+-------------------------
Comment (by acat): Replying to [comment:15 gk]: > Looks good. I wonder whether the ServiceWorker `ReportToAllClients()` messages are detectable from web content actually. Have we ruled that out? (while not being enabled in ESR 68 it will be for mobile IIRC). I think we are good. [https://searchfox.org/mozilla- esr68/rev/92032fc58f059a475a3f3999741fbd9d3c389b61/dom/serviceworkers/ServiceWorkerManager.cpp#1363 LocalizeAndReportToAllClients] ends up calling [https://searchfox.org /mozilla- esr68/rev/92032fc58f059a475a3f3999741fbd9d3c389b61/dom/console/ConsoleUtils.cpp#134 ConsoleUtils.cpp] which seems it's only logging to console. I also tested a bit with the different error handlers in Service Workers and I could not get a localized message. -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30683#comment:19> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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