dash.js video element broken

[luwes]

Contribute to these video elements to fix the demo.

• https://github.com/muxinc/hls-video-element/ : https://dev.playerx.io/demo/hls.js/
• https://github.com/Dash-Industry-Forum/dash-video-element : https://dev.playerx.io/demo/dash.js/

[luwes]

hls-video is fixed by https://github.com/luwes/hls-video-element