Hi @Terri, do you mean using Rule HTTP Action to make HTTP request to your tablet running Fully Kiosk Browser directly? Yes you can do this without the need of FKB device handler, but you will need to configure your router/gateway to direct the traffic from internet to the tablet on LAN securely.
See below for a quick Fully Kiosk Browser’s api example. Because your tablet uses a local ip address, the HTTP request sent from Rule Engle will not be able to resolve and reach your local ip address. So you will need to configure your router/gateway to forward the external traffic to your tablet and use an external reachable address in the Rule HTTP. (Please make sure your setup is secure and encrypted.)
http://[your_tablet_local_ip]:2323?cmd=loadStartURL&password=[fkb_admin_password]