RESOLVED INVALID 182864
Feature request: Web Manifest's beforeinstallprompt event and browser triggered add-to-homescreen prompt 
https://bugs.webkit.org/show_bug.cgi?id=182864
Summary Feature request: Web Manifest's beforeinstallprompt event and browser trigger...
Kenji Baheux
Reported 2018-02-15 22:34:18 PST
The BeforeInstallPromptEvent is dispatched when the site is allowed to present a site-triggered install prompt, or prior to the user agent presenting an automated install prompt. It allows the site to cancel the automated install prompt, as well as manually present the site-triggered install prompt. A browser may choose to show an add-to-home screen prompt based on user engagement signals, the presence of a valid Web Manifest and other signals of a good user experience. Impact: - Being able to control when to show a browser triggered add-to-home-screen prompt is important for some verticals like e-commerce to avoid disrupting users in the process of buying or reviewing an item. Spec: https://w3c.github.io/manifest/#beforeinstallpromptevent-interface Demos: - https://killer-marmot.appspot.com/web/ - https://github.com/GoogleChrome/samples/tree/gh-pages/app-install-banner Documentation - https://github.com/slightlyoff/AppInstallImprovements/blob/master/explainer.md#controlling-installation - https://developer.mozilla.org/en-US/docs/Web/API/Window#Event_handlers - https://developer.mozilla.org/en-US/docs/Web/API/Window/onbeforeinstallprompt - https://developer.mozilla.org/en-US/docs/Web/API/BeforeInstallPromptEvent Enabled by default in Chrome 45+ Consensus & Standardization Firefox: Public support Edge: No public signals Safari: No public signals Web Developers: Positive
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Radar WebKit Bug Importer
Comment 1 2018-02-15 22:37:09 PST
<rdar://problem/37595905>
Maciej Stachowiak
Comment 2 2018-02-15 22:52:32 PST
This is a Safari request. Radar moved and I'm closing the bugzilla.
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