fix cors

config/runtime.exs

@@ -36,6 +36,11 @@ config :ex_aws, :s3,
 
 config :provider_service, :s3_bucket, System.get_env("S3_BUCKET", "provider-service")
 
+cors_origin = System.get_env("CORS_ORIGIN", "*")
+
+config :cors_plug,
+  origin: cors_origin
+
 # ## Using releases
 #
 # If you use `mix release`, you need to explicitly enable the server