I have followed the instructions located at:
https://support.freshdesk.com/support/discussions/topics/771
and using the assetUrl suggested still does not work. I still see the following in the javascript console of the browser (both firefox and chrome):
Blocked loading mixed active content "http://foo.freshdesk.com/loading.html?ver=2"
Please let everyone in the community know how to load your javascript widet when using ssl.