Trouble to setup tls with kubernetes: "ERR_SSL_PROTOCOL_ERROR"

I'm trying to setup tls/https for my kubernetes-pod. I configured an ingress rule and I've a got service as loadbalancer. I obtained my certificate from my provider. Not sure, how important that is: It's wildcard certificate: *.my-domain.org

(Note: my-domain.org is a replacement ;) )

The browser returns "ERR_SSL_PROTOCOL_ERROR".

By the way: http is running successfully.

My steps in detail:

I've got a certificate and a key that I'm adding as secret:

kubectl create secret tls tls-secret -n default --cert=ssl_certificate.cer --key=private_key.key

This is the setup of my ingress rule:

apiVersion: networking.k8s.io/v1kind: Ingressmetadata:  name: my-ingress  namespace: defaultspec:  tls:  - hosts:    - my-domain.org    secretName: tls-secret  rules:  - host: my-domain.org    http:       paths:      - path: /        pathType: Prefix        backend:           service:            name: my-service            port:              number: 80

This is my service:

apiVersion: v1kind: Servicemetadata:    name: my-servicespec:    selector:                       app: my-pod    ports:                      - protocol: TCP      targetPort: 3000      port: 80      name: http    - protocol: TCP      targetPort: 3000            port: 443               name: https                     type: LoadBalancer   

And finally my pod created by the following deployment:

apiVersion: apps/v1kind: Deploymentmetadata:    name: my-deploymentspec:    replicas: 1    selector:        matchLabels:            app: my-pod    minReadySeconds: 5    template:        metadata:            labels:                app: my-pod        spec:            containers:            - name: my-container              image: registry.../nextapp:latest              imagePullPolicy: Always              stdin: true              tty: true              ports:              - containerPort: 3000                name: http            imagePullSecrets:            - name: registry-credentials            restartPolicy: Always