Coming soon doesn't play video on SSL-Sites

Is it right that it doesn't work on SSL-Sites ?

It shows the video background image (for mobile devices) only, but not the video. On the same site without https it is working as it should do.

Hi kolnikow,
Thanks for contacting us and choosing our product!
About your problem with coming soon. On mobile devices the video doesn't support!
In introduction about product we have noticed it :
www.joomlaux.com/document/jux_coming_soon/#!/introduction

Soory, I talked about SSL connection, not about mobile connection.

The video is not shown, when connected via SSL on a PC. The video is desplayed without SSL.

Hi kolnikow,
Thanks for your reply!
Sorry for late response. Our product use youtube as background video and it doesn't support play video on SSL site!

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Regards,
--GD--