Attempting to ‘umute’ the video in the Replay throws: Uncaught TypeError: videoPlayer.unmute is not a function error.
videoPlayer.unmute() needs to be changed to videoPlayer.unMute() in the unmuteVideo function:
function unmuteVideo() { videoPlayer && (1 == videoProvider ? videoPlayer.unmute() : 2 == videoProvider && videoPlayer.getPlayer().setMuted(!1)) }