[Webkit-unassigned] [Bug 255716] Feature request: Implement `BeforeInstallPrompt` event for programmatic Add to Home Screen

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255716

--- Comment #4 from Marcos Caceres <marcosc at apple.com> ---
Wait, what “UA-defined criteria are met”? 

In Safari, users are free to add *any* website to their Home Screen whenever they like. There is no arbitrary ever-shifting “UA criteria” in Webkit for when users can add things to the Home Screen as installed apps (sites don’t need a well-formed manifest, specific icon sizes, a service worker, or an ever changing list of arbitrary requirements). 

This is what I’m eluding to: Chrome has made some choices about “UA criteria” that we are not going to replicate in WebKit. It’s also why “installabilty signals” were removed from the Web Manifest spec (they don’t make sense or are left up to each browser if they want to go down that route, as Chrome did). 

Safari doesn’t shows an prompt, so install buttons don’t make sense. To add a web app to the home screen, the user goes to the share menu and add it from there. 

So again, I don’t see how beforeinstallprompt helps when the is literally no install prompt (and definitely no “UA-defined criteria”)?

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