The last update broke the video playing through kvsplayer

After the last update of the Tor browser, video, which is longer than a few minutes, are not playing. The problem was found on kvsplayer. This problem did not exist before.

The JW Player and Fluid Player also do not work. I think that problem exists for many media players.
Checked video on version 12.5.3, everything works. Version 13.0 does not work. Please, fix it.