identity server -> the server

api/client-server/definitions/request_token_response.yaml

@@ -16,10 +16,9 @@ properties:
   sid:
     type: string
     description: |-
-      The session ID. Session IDs are opaque strings generated by the identity
+      The session ID. Session IDs are opaque strings generated by a server.
-      server. They must consist entirely of the characters
+      They must consist entirely of the characters ``[0-9a-zA-Z.=_-]``. Their
-      ``[0-9a-zA-Z.=_-]``. Their length must not exceed 255 characters and they
+      length must not exceed 255 characters and they must not be empty.
-      must not be empty.
     example: "123abc"
   submit_url:
     type: string