Comment 2 for bug 1550290

Found the issue is that API server is returning only the "default-project" if we send "X_API_ROLE" role as null.
From UI, We send "X_API_ROLE" as null in case of vcenter as it's not applicable.

API server response if we don't send any headers:
root@nodec4:~# curl http://localhost:8082/projects
{"projects": [{"href": "http://localhost:8082/project/00ee9933-b75c-4bb6-afd1-fa05899ff5cf", "fq_name": ["default-domain", "default-project"], "uuid": "00ee9933-b75c-4bb6-afd1-fa05899ff5cf"}, {"href": "http://localhost:8082/project/e22e663f-f608-4250-9063-e95165e0eac8", "fq_name": ["default-domain", "vCenter"], "uuid": "e22e663f-f608-4250-9063-e95165e0eac8"}]}

API server request issued from UI
root@nodec4:~# curl -H 'X-Auth-Token:null' -H 'X_API_ROLE:null' http://localhost:8082/projects
{"projects": [{"href": "http://localhost:8082/project/00ee9933-b75c-4bb6-afd1-fa05899ff5cf", "fq_name": ["default-domain", "default-project"], "uuid": "00ee9933-b75c-4bb6-afd1-fa05899ff5cf"}]}

In 3.0, for the same curl request, API server responds with all the projects.

root@b4s375:~# curl -H 'X-Auth-Token:null' -H 'X_API_ROLE:null' http://localhost:8082/projects
{"projects": [{"href": "http://localhost:8082/project/6566fd24-7096-42c2-9545-358db86726e6", "fq_name": ["default-domain", "vCenter"], "uuid": "6566fd24-7096-42c2-9545-358db86726e6"}, {"href": "http://localhost:8082/project/13bca581-a562-49b9-a765-39e2bb06b2a8", "fq_name": ["default-domain", "default-project"], "uuid": "13bca581-a562-49b9-a765-39e2bb06b2a8"}]}