MPEG-DASH

Here’s a test video which will play in browsers which support Media Source Extensions with h264 codec:

MPEG-Dash with alternative HLS stream as fallback

If you see a dance video, then your browser doesn’t support MSE which is required for MPEG-DASH playback.

Vimeo MPEG-DASH

Using MPEG-DASH on compatible browsers, otherwise using HLS or MP4.