[tbb-bugs] #28874 [Applications/Tor Browser]: https://browserleaks.com/webgl crashes tab on 64bit Tor Browser for Windows

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#28874: https://browserleaks.com/webgl crashes tab on 64bit Tor Browser for Windows
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 Reporter:  gk                               |          Owner:  tbb-team
     Type:  defect                           |         Status:
                                             |  needs_information
 Priority:  High                             |      Milestone:
Component:  Applications/Tor Browser         |        Version:
 Severity:  Normal                           |     Resolution:
 Keywords:  tbb-crash, TorBrowserTeam201812  |  Actual Points:
Parent ID:                                   |         Points:
 Reviewer:                                   |        Sponsor:
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Comment (by tom):

 Replying to [comment:7 gk]:
 > We are not defining `ANGLE_PRELOADED_D3DCOMPILER_MODULE_NAMES` in
 https://dxr.mozilla.org/mozilla-esr60/source/gfx/angle/update-
 angle.py#257. But I wonder where `D3DCOMPILER_DLL` is supposed to come
 from in our case. From `d3dcompiler.rs`??

 Nope:
 https://github.com/apitrace/dxsdk/blob/master/Include/d3dcompiler.h#L18

 Since all this seems to be related to DirectX; I suppose getting some info
 about that might be helpful.

 Start -> Run -> dxdiag will get diagnostic information. At a minimum I'd
 say go to the Display page and copy that info (either with a screenshot,
 or save the info to a text file and copy it out.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28874#comment:10>
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