Convert the certificate from PEM to PKCS12 using openssl openssl pkcs12 -export -out keystore.p12 -in mydomain.crt Provide a strong password when prompted I don't know if it's a version issue but I only got the first instruction working adding the " -inkey mydomain.key"   openssl pkcs12 -export -inkey mydomain.key -in mydomain.crt -out keystore.p12   The rest of the article is great. Thanks for the explanation     ... View more

I'm glad you were able to find a workaround. But if I understand the solution correctly, then we must use JQuery and abandon hopes of using the Fetch API? I would like to use CORS for the added security and feel like this is not a holistic solution. The root issue seems to be that NiFi admins cannot add origins. Is this really the only option? ... View more