Node.js SSL certificate validation issue

UNABLE_TO_VERIFY_LEAF_SIGNATURE

This is a Node.js SSL certificate validation issue. It means Node doesn’t trust the certificate chain from your local Sitecore endpoint (https://sc104sc.dev.local).

Why this happens

• Your Sitecore instance is using a self-signed cert or a cert signed by a local CA
• Node.js doesn’t automatically trust your OS certificate store
• So the HTTPS request fails during SSL verification

Fix options (choose one)

Option 1 — Trust the local root CA (best long-term fix)

If you're using something like mkcert:

1. Install the root CA into Node:
2. export NODE_EXTRA_CA_CERTS=/path/to/rootCA.pem
3. Then restart your dev server

This keeps SSL validation intact (recommended)