In curl I can connect with a private key, client cert, and a ca cert like this
curl --cert cert.pem --key key.pem --cacert ca.pem https://example.org
I can see the --cert and --cert-key options in HTTPie, but how could I use the --cacert option in HTTPie?
I tried combining cert.pem and ca.pem in a new file and using that as my --cert file, but that didn't work.