es : 
----------

- rules shoudl be based on host .
- rules depending on the resource :
  - server : rules defined in .ini
  - db : rules defined in .db

- default cors policy : 
    - allows credential = false
    - cors enabled
- cors can be disabled globaly



rules definiton : 

global wide

[httpd]
cors_enabled = true

[origins]
domain.tld = http://origin.tld, https://origin.tld

[http://origin.tld]
allow_methods = GET, POST
allow_headers = x-couchdb-...
allow_credentials = false


[https://origin.tld]
allow_methods = GET, PUT, POST, DELETE
allow_headers = x-couchdb-...
allow_credentials = true
allow_server_admins = true
max-age = 36000


ond db _security object :


{
    "origins": {
        "domain.tld": [
            {"http://origin.tld": { "allow_methods": "GET, POST",
...}
        ]
    }
}



work flow : 

is origins list empty in ini
yes -> is admin party set ? 
  yes -> return "*" , credentials false (with a good caching policy)
  no -> stop
no -> 
  is host in .ini ? 
  yes ->
    is origin in host cors list ?
    yes ->
      set the cors headers based on .ini
      then are we on a db resource ?
        yes ->
          apply the intersection of .ini with db resource
    no -> stop 
  no ->
    <bikeshed defaults>