Problem with ckanext-ngsiview and pep-proxy Wilma

[osfrance]

Hi, I try to use Fiware CKAN (Ckan with ckanext-oauth2 and ckanext-ngsiview) with a PEP-Proxy Wilma and I had a 401 error after setting Url to PEP-Proxy and "OAuth-Token" to required.

On the keyrock Log I found this :

STC-security_keyrock.1.8y6izg3ox6cq@vmlx | 2017-11-08 14:15:24.350 97 WARNING keystone.common.wsgi [-] Authorization failed. The request you have made requires authentication. from 10.255.x.xx
STC-security_keyrock.1.8y6izg3ox6cq@vmlx | 2017-11-08 14:15:24.352 97 INFO eventlet.wsgi.server [-] 10.255.x.xx - - [08/Nov/2017 14:15:24] "GET /v3/access-tokens/whawIMPS03BZnYKn25XjDQEjCfHLzD HTTP/1.1" 401 334 4.029003
STC-security_keyrock.1.8y6izg3ox6cq@vmlx | 2017-11-08 14:15:24.434 97 INFO eventlet.wsgi.server [-] 10.255.x.xx - - [08/Nov/2017 14:15:24] "POST /v3/auth/tokens HTTP/1.1" 201 548 0.077919

On the Log of Pep-proxy Wilma :

2017-11-08 14:17:50.430 - INFO: IDM-Client - Checking token with IDM...
2017-11-08 14:17:54.449 - ERROR: IDM-Client - Error validating token. Proxy not authorized in keystone. Keystone authentication ...
2017-11-08 14:17:54.537 - ERROR: Server - Caught exception: SyntaxError: Unexpected token u

If I compare The HTTP request with Wirecloud/Pep-proxy Wilma (Pep work with Wirecloud with the same configuration) and Ckan/Pep-proxy Wilma :
Wirecloud/Pep-proxy HTTP request :

POST /v1/queryContext?limit=100&details=on&offset=0 HTTP/1.1
user-agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36 OPR/48.0.2685.52
accept: application/json
Content-Type: application/json
accept-language: en-US,en;q=0.8
x-forwarded-for: 10.12.x.xx, 172.17.x.xx,10.255.x.xx
fiware-service: test
fiware-servicepath: /oliv
x-real-ip: 10.12.x.xx
x-requested-with: XMLHttpRequest
x-auth-token: g8xYJGspvTtBMpI02fBOKeBBnR9REC
X-Nick-Name: user1
X-Display-Name: user1
X-Roles: [{"name":"Provider","id":"provider"}]
X-Organizations: []
Host: iot.test.org:1026
Content-Length: 63
Connection: close

Ckan/Pep-proxy HTTP request :

POST /v1/queryContext?attributeFormat=object HTTP/1.1
Host: iot.test.org:8081
Connection: keep-alive
Accept-Encoding: gzip, deflate
Accept: application/json
User-Agent: python-requests/2.10.0
Fiware-Service: test
Content-Type: application/json
Fiware-ServicePath: /oliv
X-Auth-Token: whawIMPS03BZnYKn25XjDQEjCfHLzD
Content-Length: 104

{"entities": [{"type": "obj-test", "id": "test1", "isPattern": "false"}], "attributes": ["temperature"]}

I suspect ckanext-ngsiview don't send HTTP header X-Nick-Name: user1 ...

Thanks for help,

-Olivier.