I think this use case is specially designed for Mobile app and same use case is not applicable for the web app hence this is no web app version.

You can read it's description.

Cordova plugin to prevent the app from going to sleep while in background. Most mobile operating systems are multitasking capable, but most apps dont need to run while in background and not present for the user. Therefore they pause the app in background mode and resume the app before switching to foreground mode. The system keeps all network connections open while in background, but does not deliver the data until the app resumes. Plugin's Purpose This plug-in can be used for applications, who rely on continuous network communication independent of from direct user interactions and remote push notifications.

Thanks and Regards,

Suraj Borade

Hello Romuel as Suraj said, this plugin is for mobile app, but I was curious, what is the scenario of web application?