Slightly off-topic perhaps, because I think you're making a general point, but although you may want the native shared box it only works for Safari users - http

Slightly off-topic perhaps, because I think you're making a general point, but although you may want the native shared box it only works for Safari users - https://caniuse.com/#search=web%20share%20api https://caniuse.com/#search=web%20share%20api - with apparently very little appetite for it from other browser vendors. Maybe its time will come, but I think there are lots of issues with implementation.