Insecure content error for domain name that has a valid SSL certificate
I own a built-in domain and custom domain through Squarespace, and when anyone using Xfinity for internet tries to access the custom domain, it is getting blocked. The content for both pages is identical; custom domain is just a more user friendly option than the built-in one issued by Squarespace. The error message that comes up states that there is insecure content. I have a valid SSL certificate that covers both domian names. I see no issue with other providers such as AT&T or Verizon. Anyone else out there with same problem?