Is there a way to set allow=“microphone; camera; fullscreen" as part of the simplified iframe plugin?
Hello @peter4
Thanks for reaching out! I’m afraid these type of permissions are not allowed as a part of Cross Origin iframes.
Chrome: https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-permissions-in-cross-origin-iframes
and other browsers followed this and deprecated this option.
Sorry for not being really helpful here. 
Thanks for understanding.
Regards,
Dumitru