Add Mimir datasource. There was an error returned querying the Prometheus API

I using Grafana v11.1.4 datasource Mimir deploy via K8s.
When I add datasource like : Grafana v11.1.4 => https://mimir.local.com/prometheus (haproxy with TLS/SSL) => Backend K8s worker node (Using nginx ingress)
Error : Post “https://mimir.local.com/prometheus/api/v1/query”: Service Unavailable - There was an error returned querying the Prometheus API.

Workarround :

  • Grafana v11.1.4 Maphost domain ingress through K8s-workernode
  • Test with Grafana v10.2.2 connect Mimir domain with TLS/SSL is ok

I don’t know why.
I wana using domain with TLS/SSL for security
Pls help me.