Apologies for the confusion, the output looked similar to the image onebox engine.
The suggested link (properly fitted with a UUID) does not work. Nor does this image I pulled from Google (and am here writing as an anchor tag. If the pasting some HTML is equivalent to having a onebox output it, this would explain our results.
https://static-cse.canva.com/blob/1031184/1600w-wK95f3XNRaM.jpg