As far as I’m aware this Add to Home Screen API you’re describing controlled by the website doesn’t exist, adding a PWA is a process controlled by the browser which occurs according to its heuristics, on Chrome it’s something to do with repeated visits to the same site. The only control the website has is a manifest, which sets the icon, loading screen colour, and whether the website can run without browser chrome.
Edit: It looks like Chrome may have changed this, what I’m referring to above was the initial implementation. I think it’s a reasonable objection to say this should be under the control of the browser. But Safari could just implement the former without the latter.
My main gripes with Safari at least with my use of webapps is that it doesn’t allow users to install PWA’s without the browser chrome, and its implementation of service workers is subtlely broken. Those are the biggest usability issues.
If a user goes out of their way to go to the share menu, scroll along and click ‘add to homescreen’ why not allow them to specify to use what is clearly an app-like link without browser chrome? And why implement Service Workers but not according to the standard?
Edit: It looks like Chrome may have changed this, what I’m referring to above was the initial implementation. I think it’s a reasonable objection to say this should be under the control of the browser. But Safari could just implement the former without the latter.
My main gripes with Safari at least with my use of webapps is that it doesn’t allow users to install PWA’s without the browser chrome, and its implementation of service workers is subtlely broken. Those are the biggest usability issues.
If a user goes out of their way to go to the share menu, scroll along and click ‘add to homescreen’ why not allow them to specify to use what is clearly an app-like link without browser chrome? And why implement Service Workers but not according to the standard?