The problem is when you use self signed certificate.
almost 7 years ago
I tried to reconstruct your problem and it worked for me just fine with an https-url. In order to get a better understanding of your problem, could you give me more information about your problem. Is it a local or a remote website that you want to show? Is the image solely in a <img> - html tag or is it part of a css declaration? Could it be that you entered a wrong url?