Download the [Media Source plugin](https://github.com/videojs/videojs-contrib-media-sources/releases) as well as the [HLS tech](https://github.com/videojs/videojs-contrib-hls/releases). On your web page:
Download [videojs-contrib-media-sources](https://github.com/videojs/videojs-contrib-media-sources/releases) and [videojs-contrib-hls](https://github.com/videojs/videojs-contrib-hls/releases). Include them both in your web page along with video.js: