Fix error after variable name refactor

KeRS/settings.py

@@ -159,4 +159,5 @@ OAUTH = {
     'REDIRECT_URI':     f'{BASE_URL}/login/zeus/authorized',
     'CLIENT_ID':        os.getenv('OAUTH_CLIENT_ID', 'tomtest'),
     'CLIENT_SECRET':    os.getenv('OAUTH_CLIENT_SECRET', 'blargh'),
+    'REFERER':          f'{BASE_URL}/login/zeus/register'
 }

oauth/views.py

@@ -65,7 +65,7 @@ def get_access_token(code):
               'client_id': settings.OAUTH["CLIENT_ID"],
               'client_secret': settings.OAUTH["CLIENT_SECRET"],
               'redirect_uri': settings.OAUTH["REDIRECT_URI"]},
-        headers={'Referer': f'{settings.SERVER_URL}/login/zeus/register'})
+        headers={'Referer': settings.OAUTH["REFERER"]})
     if response.status_code != 200:
         raise OAuthException(
             f'Status code {response.status_code} when requesting access token.\nresponse: {response.text}')