ConnectionMonitor is once again notified of disconnect

actioncable/app/assets/javascripts/action_cable/connection.coffee

@@ -101,4 +101,5 @@ class ActionCable.Connection
   disconnect: ->
     return if @disconnected
     @disconnected = true
+    @consumer.connectionMonitor.disconnected()
     @consumer.subscriptions.notifyAll("disconnected")

actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee

@@ -18,6 +18,7 @@ class ActionCable.ConnectionMonitor
 
   disconnected: ->
     @disconnectedAt = now()
+    ActionCable.log("ConnectionMonitor disconnected")
 
   ping: ->
     @pingedAt = now()