User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:51.0) Gecko/20100101 Firefox/51.0
Build ID: 20161124073320
Steps to reproduce:
1.Open the following URL
(http://webglsamples.org/WebGL2Samples/), select each demo and interract with them.
2.Test every functions liste below.
Nothing is displayed in the display preview window for draw_primitive_restart function and transform feedback.
It must be displayed with graphic animation and no visible lags or visual glitches.
*** This bug has been marked as a duplicate of bug 1316310 ***
*** Bug 1320485 has been marked as a duplicate of this bug. ***