I'm doing some request to an API that has SSL certificate. The output says the follwing: RequestError: unable to verify the first certificate : https://urlfromtheclient.com
and also UNABLE_TO_VERIFY_LEAF_SIGNATURE
So, the client sent me the CA certificate which it has "client -- chain -- root) in CRT format. I put that in the following section:
But it doesn't work. I have the same error as above.