Ah, I just realised you're referring to embedding into the templates? I was hoping you meant there was a way to disable th editor for some field types.
The iFrame issue I have is that iframes get stripped out when adding them as an entry via the code/html view of a text area field. The Multimedia filter works, however, so I can add a link to a Vimeo video and that will then display, but H5P links don't seem to work despite that filter being enabled. iFrames seem to be working everywhere else in activities and resources; it's just Database activities this seems to be occuring for.
The iFrame issue I have is that iframes get stripped out when adding them as an entry via the code/html view of a text area field. The Multimedia filter works, however, so I can add a link to a Vimeo video and that will then display, but H5P links don't seem to work despite that filter being enabled. iFrames seem to be working everywhere else in activities and resources; it's just Database activities this seems to be occuring for.