If the assign grading page is currently claiming to be an 'embedded' layout, then it is cheating. The embedded layout is documented as being for things in iframes. I know what the assign grading page is trying to do, but using embedded layout to achieve it is definitely a hack.
We need to look at what our options here, but they potentially include:
- use a different layout
- create a new layout for this kind of interface
- update the documentation to state that the embedded layout may be used for fullscreen interfaces