Box Embed not working (Security page displays)

Hi

I'm trying to use box embed (for which the documentation needs to be updated) https://docs.box.com/docs/box-embed.  I've found the correct way to get the iframe entry but any iframe I use for different directories shows the "For security purposes..." (drag the clouds) page.

Can you please fix this or let us know when embedding will once again work?

thanks

Chandra