Cannot embed Google drive video

Greetings

I have tried <p><iframe height="480" src="https://drive.google.com/file/d/1OXlb1KuTar-PFt20QwFa1-Q9ywBbprIt/preview" width="640"></iframe></p> which works on a D7 site.

on my OA2 site the frame flashes and I get an error in the console

cb=gapi.loaded_0:1 Uncaught TypeError: gapi.loaded_0 is not a function
at cb=gapi.loaded_0:1

likely something I've done

I would appreciate any hints to start.