Check Remote Cluster Health from Kibana for a Cluster where CCS is enabled

We have Cross Cluster Search enabled and kibana connected to one of the clusters. I am unable to run a health API to check health of a diff remote cluster.

Ex : GET /remote_cluster2:_cluster/state?pretty=true
I get the following error :

{
  "error": "Incorrect HTTP method for uri [/remote_cluster2%3A_cluster/state?pretty=true] and method [GET], allowed: [POST]",
  "status": 405
}