Self-signed certificates unable to be used

My ES 7.0.1 clusters each use a self-signed TLS cert to serve client requests.

$ curl -ks https://localhost:9202/_cluster/health?pretty
{
  "cluster_name" : "transcriptions-cluster1",
  "status" : "green",
  "timed_out" : false,
  "number_of_nodes" : 5,
  "number_of_data_nodes" : 5,
  "active_primary_shards" : 100,
  "active_shards" : 200,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 0,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent_as_number" : 100.0
}

I am unable to connect to these clusters using the head plugin.

screencap of my elasticsearch-head-chrome plugin

Can I get the head module tolerate "Insecure"/aka self-signed server certificates?

tradiff / elasticsearch-head-chrome

Self-signed certificates unable to be used #28