Application context

Application context refers to the top-level browsing context of a web application. It determines how an app’s browsing context, such as a tab or a window, is presented and behaves.

Web developers define the application context in the web app’s manifest file. They use the scope member in the manifest to specify the set of URLs that are considered part of the application context and to which the manifest applies.

The manifest is applied after the application context is created but before navigation begins to either a start URL or a deep link. A start URL is the initial page of the web app. A deep link is a URL that directs users to a specific page within the web app, bypassing the home page. The application context ensures that the app’s defined behavior and presentation are maintained within its scope.