froge 模型转化svf格式遇到问题，总是提示token没有提供，我已经在header中提供了

token = request.GET.get('token',None)
        urn = request.GET.get('urn',None)
        safebase64urn = base64.b64encode(urn)
        PostUrl = 'https://developer.api.autodesk.com/modelderivative/v2/designdata/job'
        postData={
            'input':{
                'urn':safebase64urn
            },
            'output':{
                'formats':[
                    {
                        'type':'svf',
                        'views':[
                            '2d',
                            '3d'
                        ]
                    }
                ]
            }
        }
        headers = {'Authorization':'Bearer '+token,'Content-Type':'application/json'}
        print '--token---',headers
        resp = requests.post(PostUrl,postData,headers)
        print('HTTP {}\n{}\n\n{}'.format(resp.status_code, resp.headers, resp.text))

报错提示

HTTP 401
{'Content-Length': '37', 'Access-Control-Allow-Headers': 'Session-Id,Content-Len
gth,Accept-Encoding,x-ads-acm-check-groups,Content-Encoding,x-ads-acm-namespace,
Content-Type,If-Modified-Since,Range,Accept,x-ads-acm-groups,Content-Range,x-req
uested-with,Expect,Access-Control-Allow-Credentials,If-None-Match,Access-Control
-Allow-Origin,x-csrf-token,x-ads-test,Authorization,If-Match,x-ads-force, x-ads-
force-all', 'Connection': 'keep-alive', 'Access-Control-Allow-Credentials': 'tru
e', 'Date': 'Thu, 30 Aug 2018 03:07:56 GMT', 'Access-Control-Allow-Origin': '',
'Access-Control-Allow-Methods': 'POST,GET,OPTIONS,HEAD,PUT,DELETE,PATCH', 'Conte
nt-Type': 'text/plain'}

Token is not provided in the request.