[tbb-dev] Exposing TB as Tor Browser
Arthur D. Edelstein
arthuredelstein at gmail.com
Fri Nov 17 14:36:34 UTC 2017
On Fri, Nov 3, 2017 at 12:06 PM Tom Ritter <tom at ritter.vg> wrote:
Wordpress would like to detect Tor Browser so it doesn't perform the
> check and therefore doesn't pop the prompt. This would significantly
> reduce the number of prompts Tor Browser users are seeing.
I think a possibly good way to avoid the prompt might be a method Tom and
Mark suggested before: block image extraction without showing the prompt
unless the extraction attempt happens following a user interaction:
And indeed this would provide scripts a way of silently checking for canvas
fingerprinting protection. On load, draw on a canvas and attempt to
extract: if the returned image is blank, the page knows not to do it again
after a user interaction.
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