Problem: Unable to reach target system because of error: "UNABLE_TO_VERIFY_LEAF_SIGNATURE unable to verify the first certificate."

Steps to Resolution:

To resolve this issue, you will need to have a properly signed (not self-signed) certificate with proper certificate chaining. Failure at either end here will result in this issue. You can test validity here:

https://tools.keycdn.com/ssl
​
​Important security warning:

Through this process, it is possible to set Strict-SSL to false in order to ‘bypass’ this error. We strongly recommend against doing this, as it poses a significant security risk.

Outcome: After checking your cert and validating, re-running the inspector will now work.

Further Reading: https://github.com/nodejs/node/issues/33705

​Related articles with links: https://whatsmychaincert.com/