Volumio with SSL

Hi all, I’m trying to use Volumio in my Hass.io setup, through an iframe (so I can see queue list other than the play/stop/volume buttons)

But it’s only possibile with http.

Volumio doesn’t accept ssl (without paying for MyVolumio service).

But if I access to my Hass.io from external url (so https), I’m not able to see Volumio.

Is there a way to have Volumio integrated even with https access?