Tool/software:
If I set origin as `*.ddns.net`, I get "Access Defined"
(As the following cURL comamnd)
```
curl 'transact.ti.com/.../accesstoken' \
-H 'Content-Type: application/x-www-form-urlencoded' \
-H 'Origin: http://example.ddns.net' \
--data-raw 'grant_type=client_credentials&client_id=...&client_secret=...'
```
However, it works just fine if I remove the `Origin`; it also works if I use other domains as the `Origin`.
```
curl 'transact.ti.com/.../accesstoken' \
-H 'Content-Type: application/x-www-form-urlencoded' \
--data-raw 'grant_type=client_credentials&client_id=...&client_secret=...'
```
