Thanks, Mike.
Would this still be a certificate issue? Our certificate is not signed or anything. So we are placing the map service address as an exception to an internet browser for it to allow access to "unsigned" content. By doing this we are able to use the AGOL webmaps with mapservice from an unsigned source. What doesnt seem to make sense is why, after doing the exception list, would AGOL allow features to be drawn but not the legends (or the info configured for the pop-up dialog, as we also recently found out). What specific about these that makes them excluded?
Regards,
Egan