Configuring client certificate to login

[Giorgi]

I'm trying to run a Recording PoC with Gatling for one of our applications.

To login to the application user has to submit a client certificate.

When I'm accessing the login web-page, GET request is successfully recorded, but when I'm submitting the certificate browser fails with error: "Secure Connection Failed"

Am I missing some piece of configuration here?

HTTPS Mode: Self-signed Certificate

gatling.conf 

    ssl {

      trustStore {

        type = "JKS"      # Type of SSLContext's TrustManagers store

        file = "C:/work/gatling/certificate/truststore.jks"      # Location of SSLContext's TrustManagers store

        password = "pass"  # Password for SSLContext's TrustManagers store

        #algorithm = "" # Algorithm used by SSLContext's TrustManagers store

      }

      keyStore {

        type = "JKS"      # Type of SSLContext's KeyManagers store

        file = "C:/work/gatling/certificate/mykeystore.jks"      # Location of SSLContext's KeyManagers store

        password = "pass"  # Password for SSLContext's KeyManagers store

        #algorithm = "" # Algorithm used SSLContext's KeyManagers store

      }

    }

mykeystore.jks contains only one Alias