oauth2 authorization code oauth2-redirect.html

redirect not found
```url
http://localhost:8080/oauth2-redirect.html?code=e9hHdQBGAMIK&state=TW9uIEp1biAyOSAyMDIwIDExOjA1OjM4IEdNVCswODAwICjkuK3lm73moIflh4bml7bpl7Qp
```

redirect ok
```url
http://localhost:8080/swagger/oauth2-redirect.html?code=e9hHdQBGAMIK&state=TW9uIEp1biAyOSAyMDIwIDExOjA1OjM4IEdNVCswODAwICjkuK3lm73moIflh4bml7bpl7Qp
```

Unable to configure