beforeinstallpromptThe beforeinstallprompt event fires when a Progressive Web App (PWA) is installable. You can cancel the event and later call event.prompt() to control when the installation prompt is shown. The appinstalled event fires when the PWA is successfully installed.progressive-web-appProgressive web applimitedhttps://wicg.github.io/manifest-incubations/#installation-eventshttps://developer.mozilla.org/docs/Web/API/BeforeInstallPromptEventapi.BeforeInstallPromptEventapi.BeforeInstallPromptEvent.BeforeInstallPromptEventapi.BeforeInstallPromptEvent.platformsapi.BeforeInstallPromptEvent.promptapi.BeforeInstallPromptEvent.userChoiceapi.Window.appinstalled_eventapi.Window.beforeinstallprompt_eventhttps://nowyoucanuse.com/features--beforeinstallprompt.html