.pem file for npm error! unable to install packages in Windows because of proxy

Question

I am getting npm error UNABLE_TO_GET_ISSUER_CERT_LOCALLY upon trying to install npm package most likely because i am behind corporate proxy. I saw this which gives a possible solution to add NODE_EXTRA_CA_CERTS as path variable and point it to pem file. I searched for.pem file in C drive and found few inside C:\Windows\System32\DriverStore\FileRepository\ folder, but npm gives the same error if i use them.Also referred this for generating pem using openssl but it's not working for me.

Question: Where to locate.pem file in Windows or how to generate one for above use case.

Answer 1

If you are behind proxy, you need to configure it for npm also.

npm config set proxy http://proxy_ip:port
npm config set https_proxy http://proxy_ip:port

to remove

npm config rm proxy
npm config rm https_proxy