#31206: http://ip-check.info detects browser window size with JS disabled --------------------------------------+--------------------------- Reporter: cypherpunks | Owner: tbb-team Type: defect | Status: closed Priority: Medium | Milestone: Component: Applications/Tor Browser | Version: Severity: Critical | Resolution: not a bug Keywords: | Actual Points: Parent ID: | Points: Reviewer: | Sponsor: --------------------------------------+---------------------------
Comment (by cypherpunks): Replying to [comment:2 cypherpunks]: > > Yes, CSS can do this, too. > > But how can CSS send back an HTTP request to the website, containing the info? It has no XHR capabilities. Based on the requests sent to the server for each different background, https://arthuredelstein.github.io/tordemos/media-query-fingerprint.html -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31206#comment:3> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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