I don’t think you can get a web page to connect to RICOH THETA using HTTP with 192.168.1.1 as the endpoint. Are you getting CORS error?
Or, is the THETA connected in client mode and it is assigned an IP address from your DHCP server?
You could run a small electron app on the desktop computer to work as a type of proxy.
I’m not sure what the current state of React in a browser is, but sending an HTTP request to another IP address that wasn’t from the originating server used to be blocked. Is it possible to do this now?
Do you have it working on a test server on your local computer?