In Sierra, did Apple remove the ability to play HLS streams in Quicktime Player? For years, I've been able to use Quicktime to play live HLS video streams such as http://hls.twit.tv/flosoft/mp4:twitStream_720/playlist.m3u8. I open Quicktime, go to File -> Open Location, and paste the URL.

After upgrading to Sierra, streams such as the above example no longer play.

Did Apple remove this feature in Sierra, or is there something else I'm doing wrong? Are there any types of live streams that Quicktime still natively supports? Is this just a bug that's likely to get fixed? I can't find actual documentation on this anywhere.
I have macOS Sierra 10.12 Beta (16A313a) and it seems, that Apple has fixed the issue.

I can't find release notes or something like this to point on exact QuickTime version, where this was fixed.