Some gadgets not working

Today I noticed that some of our blog gadgets are not working. I believe that recently Google changed the way they work with 3rd party gadgets.
One of the 3rd party gadget we are using is 'Recent Comments'. I noticed that no comments were showing, even though comments had been left recently.

Luckily I discovered (with help from friends) that the problem was around privacy and the fix was easy.  Blogs are usually displayed under a https:// url.  If you remove the https:// from the url, the recent comments suddenly display.