beforeinstallprompt

The 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.

Baseline Status: This feature is currently Limited and is missing in at least one major browser engine.

Desktop Browser Engine Support

Google Chrome

76

Supported

Mozilla Firefox

—

Unsupported

Apple Safari

—

Unsupported

Microsoft Edge

79

Supported

Mobile Browser Engine Support

Chrome Android

76

Firefox Android

—

Safari iOS

—

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.BeforeInstallPromptEvent ↗ api.BeforeInstallPromptEvent.BeforeInstallPromptEvent ↗ api.BeforeInstallPromptEvent.platforms ↗ api.BeforeInstallPromptEvent.prompt ↗ api.BeforeInstallPromptEvent.userChoice ↗ api.Window.appinstalled_event ↗ api.Window.beforeinstallprompt_event ↗