Commit 130660ce authored by Georg Koppen's avatar Georg Koppen Committed by Matthew Finkel
Browse files

Bug 30541: Disable WebGL readPixel() for web content

parent 8e31d798

dom/canvas/ClientWebGLContext.cpp

+8 −0
Original line number Diff line number Diff line
@@ -4619,6 +4619,14 @@ bool ClientWebGLContext::ReadPixels_SharedPrecheck( 
    return false;

  }



  // Security check passed, but don't let content readPixel calls through for

  // now, if Resist Fingerprinting Mode is enabled.

  if (nsContentUtils::ResistFingerprinting(aCallerType)) {

    JsWarning("readPixels: Not allowed in Resist Fingerprinting Mode");

    out_error.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);

    return false;

  }



  return true;

}