fix(devops): After fetching feature flags dont attempt to access results unless status=200

ref: #688 #687

app/centurion_feature_flag/lib/feature_flag.py

@@ -258,16 +258,21 @@ class CenturionFeatureFlagging:
 
                     self._response = response
 
-                fetched_flags += resp.json()['results']
 
                 if resp.status_code == 304:    # Nothing has changed, exit the loop
 
                     url = None
 
-                else:    # Fetch next page of results
+                elif resp.ok:    # Fetch next page of results
+
+                    fetched_flags += resp.json()['results']
 
                     url = resp.json()['next']
 
+                else:
+
+                    url = None
+
             except requests.exceptions.ConnectionError as err:
 
                 print(f'Error Connecting to {url}')