Let's Encrypt SSL HTTPS 证书链问题
当前网站证书不可信且证书链长度为1问题
如下在最下面增加SSLCertificateChainFile /www/ssl/yours_ca_bundle.crt
SSLEngine On
SSLCertificateFile /www/ssl/fullchain.pem
SSLCertificateKeyFile /www/ssl/privkey.pem
SSLCertificateChainFile /www/ssl/ca_bundle.crt