I'm using a wildcard certificate for two separate domains abc.com and xyz.com
It's a Self-Signed Cert and I'm getting NET::ERR_CERT_AUTHORITY_INVALID.
Will ignoring the warnings thrown by one domain (abc.com) cause Chrome to ignore the warnings thrown in the other domain (xyz.com) by the same certificate?
The warnings gets only ignored for the domain you've explicitly added the exception for. Otherwise bad attacks would be possible, like having a self-signed certificate with both "does-not-matter-if-secure.example.com" and "www.paypal.com" as subject alternative names and then using the fact that the user adds an exception for the first unimportant site to mount a man in the middle attack against www.paypal.com.