It seems a bug/issue in dreamfactory 2.3.0-4 or laravel that CORS setting are not being persisted when using postgresql as the system/default database. Maybe an issue with field type mismatch.
I am using dreamfactory bitnami installer, and I used mysql as default database and it worked without any issue. There seems to be an issue with database fields when using postgresql as system database.
Can someone throw light on this ?