[tbb-bugs] #29246 [Applications/Tor Browser]: WebGL is sometimes blocked outright instead of put behind a click-to-play placeholder

[Tor Bug Tracker & Wiki]

#29246: WebGL is sometimes blocked outright instead of put behind a click-to-play
placeholder
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     Reporter:  gk                   |      Owner:  tbb-team
         Type:  defect               |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  noscript, tbb-
     Severity:  Normal               |  usability-website
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
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 In #21805 we put WebGL behind a placeholder with the help of NoScript.
 This works well e.g. for http://webglsamples.org/aquarium/aquarium.html.
 However other sites report just that WebGL is not supported and it
 therefore gets blocked outright:

 https://demo.marpi.pl/biomes/

 Giorgio, you mentioned in comment:5:ticket:21805 that this worked
 correctly with NoScript 10.1.8.2. Is that a regression on NoScript's side
 or an issue with WebGL detection on the website?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29246>
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