Chome not preloading video

I’m having issues with the plug in not preloading any video even though the preload=”true” is set.

You can an example here:
https://xeroproject.com/sqwm/benefits/

and the embed looks like:

[video mp4="https://xeroproject.com/sqwm/wp-content/uploads/2013/04/benefits.mp4" ogg="https://xeroproject.com/sqwm/wp-content/uploads/2013/04/benefits.ogg" poster="https://xeroproject.com/sqwm/wp-content/uploads/2013/04/slide.jpg" preload="true" width="820" height="462" captions="https://xeroproject.com/sqwm/wp-content/uploads/2013/04/intro.srt"]

Any help would be greatly appreciated.

https://www.ads-software.com/extend/plugins/media-element-html5-video-and-audio-player/