This is a great plugin, thanks. I am also getting mixed content errors due to my website being HTTPS. This is the error I received when debugging,
VM1517:1 Mixed Content: The page at [mypage] was loaded over HTTPS, but requested an insecure stylesheet ‘https://www.turboscores.com/widgets/css/widget_sml.css’. This request has been blocked; the content must be served over HTTPS.