The following preferences can be used with the SSO IFrame Portlet in addition to the standard IFrame preferences
| Preference | Usage |
|---|---|
| sso.type | The type of Single signon authentication. Valid values: form | basic | basic.preemptive | url | url.base64 |
| sso.url.Credential | The name of the credential input field or parameter |
| sso.url.Principal | The name of the user name input field or parameter |
| SSO Principal | The actual user name |
| SSO Credential | The actual crendential value |