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  • #16267

Closed (moved)
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Created Jun 02, 2015 by Trac@tracbot

NoCaptcha Recaptcha is not working because of canvas fingerprint blocking

Now, the browser is blocking canvas fingerprinting. But the new ReCaptcha is not working without it. When I try to solve a NoCaptcha on any site EXCEPT google.com, there is no dialog asking whether to allow reading the canvas, it simply fails. I know what I need to select, but I cannot see the pictures. Repro steps:

  1. Run newest TOR browser
  2. Visit a page with recaptcha, like this: http://www.codediesel.com/demos/google-recaptcha/
  3. Try to solve

Interestingly, it works on Google's page: http://www.google.com/recaptcha/api2/demo Not-so-good workaround: Open network inspector, click checkbox, look for something like "payload" in network inspector, view response. Now you can see the images. Workaround requiring modifications (I would like to have this option even if this bug is fixed): Allow user to disable canvas read blocking.

Trac:
Username: szgal

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