I am using a secure certificate on my website and the green padlock shows up on every page of my website in Google Chrome. However, when I enable Ultimate Maintenance Mode the padlock has a yellow warning sign that reads "Your connection to http://www.mydomain.com is encrypted with 128-bit encryption. However, this page includes other resources which are not secure. These resources can be viewed by others while in transit, and can be modified by an attacker to change the look of the page.".
Any ideas on how to fix this? Thanks.