mTLS in browser (chrome, firefox,...) as client doesn't work!

I am trying to use Chrome/Firefox as client, but fails in mTLS connection. The browser doesn't show the list of certificates to do the mutual Tls with traefik

Chrome browser shows:

This site can’t provide a secure connection

infraser.nolly.internal didn’t accept your login certificate, or one may not have been provided.
Try contacting the system admin.
ERR_BAD_SSL_CLIENT_AUTH_CERT

Firefox browser:

SSL_ERROR_BAD_CERT_ALERT

**mtls Configuration is RequireAndVerifyClientCert **

tls:
  certificates:
    - certFile: "infraser.nolly.internal.crt"
      keyFile: "infraser.nolly.internal.key"
  options:
    default:
      clientAuth:
        caFiles:
          - secrets/consumer1.crt
          - secrets/consumer2.crt
        clientAuthType: RequireAndVerifyClientCert

With curl works fine:

**$** curl -i --cert $CERT --key $KEY https:/infraser.nolly.internal/_service/v0/health
HTTP/2 200 
content-type: application/json
date: Fri, 03 Jul 2020 14:51:25 GMT
server: gunicorn/19.10.0
content-length: 16

{"status":"UP"}

someone has running mtls with Traefik and a web browser?

Works with curl so that means the config is all good.

Have you loaded the client certificates into the browser(s)/certificateStore?

Yes, I've loaded the certificate in to the browser (chrome and firefox) but the web browser doesn't show the certificates to do the mTLS, I suspect is the way in which Traefik require a client certificate, instead request the certificate in two steps as another proxies, Traefik do that in one step

See the imagen, nginx in the left, traefik in the right