HTTPS support for YouTube

Hi!

HTTPS protocol is stripped from YouTube URL in shortcode [su_youtube]
Assume I insert [su_youtube url=”https://www.youtube.com/watch?v=******”%5D final result on page looks like <iframe src=”http://www.youtube.com/embed/*******&gt;

Result is that video is blocked by browser for security reasons.

Thanks.

https://wordpress.org/plugins/shortcodes-ultimate/