Damn, there's a bug. In the minimal-ui mode, if you press the url bar, then 'share' -> 'add to home screen', and then 'cancel', the page is frozen and you can't

Damn, there's a bug. In the minimal-ui mode, if you press the url bar, then 'share' -> 'add to home screen', and then 'cancel', the page is frozen and you can't tap it to return the control to the web page. You need to press back once or do something else to get rid of the thing.