We use to have the ability to include it in the report PDF we would export. However it seems the i-frame now doesn't export and just comes up with 'iframe error message'.
You can see the errors in the attachment below vs the way the iframes used to show.
Any idea why the error occurs?
We now have an Image Widget in the Dashboard Analytics which is designed to store images which can be pulled into the export.
Read more in the link here.