Insecure content error in the Facebook Like iframe

Hi,

I am working with the BuddyPress Social Theme and the Ultimate Facebook plugin on a secure (SSL) site.

The Facebook iframe that is set for each activity, contains an insecure 'style' attribute background:url(sacore:inst-top.gif). It causes an error for each activity on my secure page. These error messages (attached in a text & image files) shown for each activity:
1.The image file failed to load.
2. There is a 'Refused to load the script' Error (a screen shot for a single activity is also attached), which really spams my console, and makes JavaScript debugging very unpleasant.

As far as I know, the Facebook Like button is related to the Social Theme, not the Ultimate Facebook Plugin.

Please advice,
Roei.