npm strict-ssl checking doesn't work

[mlev]

Versions

• NodeJS: v12.16.3
• mongodb-memory-server-*: 6.6.0
• system: MacOS
• npm: 6.14.4

package: mongo-memory-server

What is the Problem?

I was hitting this issue: #162 and saw that it should have been fixed in V6.6.0. But the fix to specify strict-ssl=false doesn't work for me on MacOS.

Do you know why it happens?

After a bit of digging the reasons seems to be (at least on MacOS):

• The environment variable at runtime is named npm_config_strict_ssl not npm_config_strict-ssl as in the code.
• When you specify --strict-ssl=false npm does not populate the variable as the string 'false'. It is an empty string. If you specify as true or omit it is set to 'true'.

NOTE: This appears like it could affect other places that pickup npm_config_* variables. e.g. npm_config_https-proxy

[mlev]

This doco also indicates that environment variables should use underscores:
https://docs.npmjs.com/misc/config#environment-variables