Add iframe-content option :
If you enable the iframe-consent option in the box, you can force clientvalidation before launching the iframe.
You need to insert :
<iframe-consent
type="video"
src="$EMBED_URL"
poster="$IMAGE_URL"
title="$IFRAME_TITLE"
alt="$IFRAME_ALT"
></iframe-consent>
Currently specific configurations are created for Youtube and Dailymotion.
You need to create a service youtube and/or dailymotion to use them.
If you need to add more, please open an issue.