when i submit nova get-spice-console <server> spice-html5 it show

"ERROR: Invalid console type spice-html5 (HTTP 400)"

and in when i try to access console of vm from horizon it shows

"console is currently unavailable. Please try again later."

I am using Havana on Ubuntu12.04

Controller:

install nova-spiceproxy and spice-html5

nova.conf

enabled=True
html5proxy_base_url=http://CONTROLLER_IP:6082/spice_auto.html
server_listen=CONTROLLER_IP
server_proxyclient_address=CONTROLLER_IP
keymap=en-us

Compute:

nova.conf

 agent_enabled=True enabled=True
 server_listen=0.0.0.0
 server_proxyclient_address=Compute_IP
 html5proxy_base_url=http://CONTROLLER_IP:6082/spice_auto.html
 keymap=en-us