Thank you, that is a neat plugin. I think the files may be in a javacript or something as it didn’t change those. As far as I can tell, on the home page I have 2 files which are loading in HTTP. They are:
http://www.workerscompsacto.com/wp-content/uploads/2016/06/Section0-BG.jpg?id=757
http://www.workerscompsacto.com/wp-content/uploads/2016/06/law-library.jpg?id=765
I guess it is a visual composer thing…