Hello,
I have had a similar problem embedding WP in an iframe. I tried what you did and got the same result, my solution is:-
In the sendToEditor function, 6 or 7 lines above the win.edInsertContent(win.edCanvas, h); line, is win = top;, changing this to win = parent. Now it works from both within iframes and on it’s own.
Hope this helps someone, somewhere, sometime!!!
