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-rw-r--r--oslo_middleware/cors.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/oslo_middleware/cors.py b/oslo_middleware/cors.py
index 4e3d85c..7fbe2d2 100644
--- a/oslo_middleware/cors.py
+++ b/oslo_middleware/cors.py
@@ -29,7 +29,9 @@ CORS_OPTS = [
cfg.ListOpt('allowed_origin',
default=None,
help='Indicate whether this resource may be shared with the '
- 'domain received in the requests "origin" header.'),
+ 'domain received in the requests "origin" header. '
+ 'Format: "<protocol>://<host>[:<port>]", no trailing '
+ 'slash. Example: https://horizon.example.com'),
cfg.BoolOpt('allow_credentials',
default=True,
help='Indicate that the actual request can include user '