[cas 6.3] OIDC- refresh_token is missed when get Refresh Tokens

[He Vincent]

I tried to refresh toakes as below:

POST /cas/oidc/token HTTP/1.1

Host: server.example.com

Content-Type: application/x-www-form-urlencoded

client_id=s6BhdRkqt3

&client_secret=some_secret12345

&grant_type=refresh_token

&refresh_token=8xLOxBtZp8

&scope=openid%20profile

The response was like this:

{

    "access_token": "AT-4-xxxxxxxx",

    "id_token": "eyJhbGciOiJSUzI1xxxx",

    "token_type": "bearer",

    "expires_in": 28800,

    "scope": "email openid offline_access profile"

}

There was no refresh_token like :

 "refresh_token": "9yNOxJtZa5",

[He Vincent]

I found the solution:

Add below 2 parameters to servcie.json:

  "generateRefreshToken" : "true",

  "renewRefreshToken" : "true",