CA certificate error #2

Example: 2-9., How to be your own Certificate Authority
Error in curl call: curl http://localhost:3000
{
"code": "DEPTH_ZERO_SELF_SIGNED_CERT",
"error": "Internal Server Error",
"message": "request to https://localhost:4000/recipes/42 failed, reason: self signed certificate",
"statusCode": 500
}

In Example 2-8 It's ok! In 2-9 no ok!

I added the code below to solve in "consumer-https-basic.js"
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = 0;