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[tor-bugs] #28290 [- Select a component]: Stop lying that "reporting real OS in navigator.userAgent is not a bug"
#28290: Stop lying that "reporting real OS in navigator.userAgent is not a bug"
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Reporter: indigotime | Owner: (none)
Type: defect | Status: new
Priority: Very High | Component: - Select a component
Version: | Severity: Normal
Keywords: | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Reporting real operating system in navigator.userAgent **is a bug**
because of the following:
1. Since you introduced this anti-privacy feature (by "anti-privacy
feature" I mean reporting real OS in navigator.userAgent property), **you
must** provide a way to disable it. Otherwise it looks like an
**intentional action against all Tor Browser users who want to keep their
privacy protected**. Users may want to stop reporting real OS. Users
didn't gave you a permission to decide it for them.
There are many websites which rely on navigator.userAgent and don't use
any other fingerprinting methods. Currently Tor Browser users can't stop
them from reading real OS version from navigator.userAgent. It's a bug,
and it's must be fixed.
2. According to specifications, navigator.userAgent must be equal to HTTP
User-Agent header.
https://html.spec.whatwg.org/multipage/system-state.html#dom-navigator-
useragent
https://fetch.spec.whatwg.org/#default-user-agent-value
Any difference between HTTP User-Agent and navigator.userAgent is spec
violation.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28290>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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