"Not authorized" error trying to access Ajax console

Tested using nova revision no 938.

Steps to reproduce:-
1) Run one VM instance
2) $./euca-get-ajax-console <instance id>
Output of euca-get-ajax-console command:
http://10.2.3.150:8000/?token=46c061ff-aec6-4282-9007-3e7a29046df9
3) Open the browser and paste the above URL
4) Click on the GET button, it gives an error message "Connnection lost timeout"
5) On the terminal console where I am running nova-compute service, I am getting error message saying Not authorized
Exception happened during processing of request from ('10.2.3.150', 50643)
Traceback (most recent call last):
  File "/usr/lib/python2.6/SocketServer.py", line 283, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/home/tpatil/nova/tools/ajaxterm/qweb.py", line 1317, in process_request
    return BaseHTTPServer.HTTPServer.process_request(self,*p)
  File "/usr/lib/python2.6/SocketServer.py", line 309, in process_request
    self.finish_request(request, client_address)
  File "/usr/lib/python2.6/SocketServer.py", line 322, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/lib/python2.6/SocketServer.py", line 617, in __init__
    self.handle()
  File "/usr/lib/python2.6/BaseHTTPServer.py", line 329, in handle
    self.handle_one_request()
  File "/usr/lib/python2.6/BaseHTTPServer.py", line 323, in handle_one_request
    method()
  File "/home/tpatil/nova/tools/ajaxterm/qweb.py", line 1291, in do_POST
    self.serve('GET')
  File "/home/tpatil/nova/tools/ajaxterm/qweb.py", line 1283, in serve
    appiter=self.server.wsgiapp(environ, self.start_response)
  File "/home/tpatil/nova//tools/ajaxterm/ajaxterm.py", line 506, in __call__
    raise Exception('Not Authorized')
Exception: Not Authorized
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