fsockopen(): Peer certificate CN did not match expected CN

[pratikshap31]

I have one module where the user can add a domain CNAME type.

The application domain name is xyz.com. This domain uses load balancer wildcard subdomains. When the user register, creates a subdomain a1.xyz.com. Subdomain is based on the username. So every user has own unique subdomain. Now user can add other domains to point here a1.xyz.com

For Example, The user entered the a1.abc.com domain. Set up the given Cname details on a1.abc.com records. Here, a user has a domain(a1.abc.com) in AWS 53 route. As well as I have a domain(xyz.com) in AWS 53 route.

When a1.abc.com points to a1.xyz.com it returns an error related to the SSL certificate.

Error Message when verifying SSL: Peer certificate CN xyz.com did not match expected CN a1.abc.com

Can someone help me here? What am I doing wrong?