I have the exact same use case as this user is describing: https://support.jwplayer.com/customer/portal/questions/7995792-gapless-playlists
"We are attempting to create a video playlist in which there is zero gap between each video. Currently on the playlist we have created to test this, we get about a one second of buffering between videos. We would like to get the buffering down to zero. How can we do this?"
I'd like to know if this is now possible in JWPlayer (as at the time when the post was made the answer was no) either using MediaSource or other HTML5 API?