我使用heroku制作了一个网络应用程序，并按照此处的说明设置了自定义域：https ://devcenter.heroku.com/articles/custom-domains
现在在 chrome 中，我的 Https 被划掉了，上面写着：
The identity of this website has not been verified
• Server's certificate does not match the URL.
You attempted to reach www.app.com, but instead you actually reached a server
identifying itself as *.herokuapp.com. This may be caused by a misconfiguration
on the server. Cannot verify that that is the same site as www.app.com
我不认为我错过了一步。我是否必须使用 heroku 证书续订证书？还是自己签名？或者是什么？谢谢！