SSO can be done by passing username as request param. If username request param is not available and PHP is able to read system environmental variables, then env variable S5_APP_DEFAULT_FIRST_USER value is considered as username.
SSO can be done by passing username as request param. If username request param is not available and PHP is able to read system environmental variables, then env variable S5_APP_DEFAULT_FIRST_USER value is considered as username.