Horizon error trying admin API when non-admin user

2015-06-24 21:00:29.605294 REQ: curl -g -i 'http://135.25.135.73:8774/v2/6ecda1f798c04852bd2293f7bd1db1d5/os-quota-sets/6ecda1f798c04852bd2293f7bd1db1d5' -X GET -H "Accept: application/json" -H "User-Agent: python-novaclient" -H "X-Auth-Project-Id: 6ecda1f798c04852bd2293f7bd1db1d5" -H "X-Auth-Token: {SHA1}a8fd4483bc2d215a5d35b7c8768d681d003401ed"
2015-06-24 21:00:29.743982 RESP: [200] {'date': 'Wed, 24 Jun 2015 21:00:29 GMT', 'connection': 'keep-alive', 'content-type': 'application/json', 'content-length': '371', 'x-compute-request-id': 'req-41b72132-6181-48c6-9a31-6697929a3cdf'}
2015-06-24 21:00:29.744022 RESP BODY: {"quota_set": {"injected_file_content_bytes": 10240, "metadata_items": 128, "server_group_members": 10, "server_groups": 10, "ram": 51200, "floating_ips": 10, "key_pairs": 100, "injected_file_path_bytes": 255, "instances": 10, "security_group_rules": 20, "injected_files": 5, "cores": 20, "fixed_ips": -1, "id": "6ecda1f798c04852bd2293f7bd1db1d5", "security_groups": 10}}
2015-06-24 21:00:29.744034
2015-06-24 21:00:30.507627 REQ: curl -g -i 'http://135.25.135.73:8774/v2/6ecda1f798c04852bd2293f7bd1db1d5/servers/detail?all_tenants=True&tenant_id=6ecda1f798c04852bd2293f7bd1db1d5' -X GET -H "Accept: application/json" -H "User-Agent: python-novaclient" -H "X-Auth-Project-Id: 6ecda1f798c04852bd2293f7bd1db1d5" -H "X-Auth-Token: {SHA1}a8fd4483bc2d215a5d35b7c8768d681d003401ed"
2015-06-24 21:00:30.644045 RESP: [403] {'date': 'Wed, 24 Jun 2015 21:00:30 GMT', 'connection': 'keep-alive', 'content-type': 'application/json; charset=UTF-8', 'content-length': '104', 'x-compute-request-id': 'req-f2084677-3c72-41df-a0ae-e6941c390e7a'}
2015-06-24 21:00:30.644072 RESP BODY: {"forbidden": {"message": "Policy doesn't allow compute:get_all_tenants to be performed.", "code": 403}}
2015-06-24 21:00:30.644078
2015-06-24 21:00:30.645061 Internal Server Error: /project/network_topology/
2015-06-24 21:00:30.645087 Traceback (most recent call last):
2015-06-24 21:00:30.645095   File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py", line 111, in get_response
2015-06-24 21:00:30.645102     response = wrapped_callback(request, *callback_args, **callback_kwargs)
2015-06-24 21:00:30.645108   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py", line 36, in dec
2015-06-24 21:00:30.645115     return view_func(request, *args, **kwargs)
2015-06-24 21:00:30.645121   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py", line 52, in dec
2015-06-24 21:00:30.645127     return view_func(request, *args, **kwargs)
2015-06-24 21:00:30.645133   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py", line 36, in dec
2015-06-24 21:00:30.645139     return view_func(request, *args, **kwargs)
2015-06-24 21:00:30.645145   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/decorators.py", line 84, in dec
2015-06-24 21:00:30.645152     return view_func(request, *args, **kwargs)
2015-06-24 21:00:30.645158   File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py", line 69, in view
2015-06-24 21:00:30.645164     return self.dispatch(request, *args, **kwargs)
2015-06-24 21:00:30.645169   File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py", line 87, in dispatch
2015-06-24 21:00:30.645175     return handler(request, *args, **kwargs)
2015-06-24 21:00:30.645180   File "/usr/local/lib/python2.7/dist-packages/django/views/generic/base.py", line 154, in get
2015-06-24 21:00:30.645186     context = self.get_context_data(**kwargs)
2015-06-24 21:00:30.645192   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/dashboards/project/network_topology/views.py", line 123, in get_context_data
2015-06-24 21:00:30.645199     context['instance_quota_exceeded'] = self._quota_exceeded('instances')
2015-06-24 21:00:30.645206   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/dashboards/project/network_topology/views.py", line 113, in _quota_exceeded
2015-06-24 21:00:30.645219     usages = quotas.tenant_quota_usages(self.request)
2015-06-24 21:00:30.645226   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../horizon/utils/memoized.py", line 90, in wrapped
2015-06-24 21:00:30.645232     value = cache[key] = func(*args, **kwargs)
2015-06-24 21:00:30.645237   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/usage/quotas.py", line 353, in tenant_quota_usages
2015-06-24 21:00:30.645246     _get_tenant_compute_usages(request, usages, disabled_quotas, tenant_id)
2015-06-24 21:00:30.645252   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/usage/quotas.py", line 258, in _get_tenant_compute_usages
2015-06-24 21:00:30.645259     request, search_opts={'tenant_id': tenant_id}, all_tenants=True)
2015-06-24 21:00:30.645265   File "/opt/stack/horizon/openstack_dashboard/wsgi/../../openstack_dashboard/api/nova.py", line 617, in server_list
2015-06-24 21:00:30.645271     for s in c.servers.list(True, search_opts)]
2015-06-24 21:00:30.645276   File "/usr/local/lib/python2.7/dist-packages/novaclient/v2/servers.py", line 600, in list
2015-06-24 21:00:30.645294     return self._list("/servers%s%s" % (detail, query_string), "servers")
2015-06-24 21:00:30.645297   File "/usr/local/lib/python2.7/dist-packages/novaclient/base.py", line 64, in _list
2015-06-24 21:00:30.645301     _resp, body = self.api.client.get(url)
2015-06-24 21:00:30.645304   File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 451, in get
2015-06-24 21:00:30.645391     return self._cs_request(url, 'GET', **kwargs)
2015-06-24 21:00:30.645401   File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 429, in _cs_request
2015-06-24 21:00:30.645405     resp, body = self._time_request(url, method, **kwargs)
2015-06-24 21:00:30.645409   File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 402, in _time_request
2015-06-24 21:00:30.645412     resp, body = self.request(url, method, **kwargs)
2015-06-24 21:00:30.645416   File "/usr/local/lib/python2.7/dist-packages/novaclient/client.py", line 396, in request
2015-06-24 21:00:30.645420     raise exceptions.from_response(resp, body, url, method)
2015-06-24 21:00:30.645424 Forbidden: Policy doesn't allow compute:get_all_tenants to be performed. (HTTP 403) (Request-ID: req-f2084677-3c72-41df-a0ae-e6941c390e7a)