After I have followed the instructions on heroku to add a certificate from DNSimple, I still have this error when I try to access the website:
www.web.com uses an invalid security certificate.
The certificate is not trusted because no issuer chain was provided. The certificate is only valid for the following names: *.herokuapp.com , herokuapp.com
(Error code: sec_error_unknown_issuer)
So, what could be the problem?