Configuring client certificate to login

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