As far as I can tell all our content is being served over https (except Google Map related files).

We have some users who cannot login to the unsecure version of our site from work, so I am curious to know whether the above issue is something we need to address before we transition them to our production server.

It all depends on how you’re referencing assets (images, stylesheets, etc) in your application. If you’re using relative URLs then you should be okay, but using absolute URLs without specifying https can be problematic. It may turn out to be your Google Maps key, which can support https. Let us know what you’re seeing and we’ll be glad to offer some assistance.

Do we need to purchase our own Google Premier account? (http://code.google.com/apis/maps/faq.html#ssl)