I have an application that is an internal application, works only if user connected to VPN.

Issue: When user load application at that time user connected to VPN, but later in mid of using application, user disconnected from VPN may be manually or due to bad network connection. at that time I want to detect that change in application and show that to user to connect with VPN. Is there any way to listen the VPN connection status change in ReactJs.

Thanks!