[astura]

In theory.

In the real world my crusty old-fashioned drag-and-drop works way better than pretty much all "SPA"s (who are only trying to display plain text) on low/spotty connection. SPAs usually fail to display anything but a blank screen when there is a slow connection.

Losing form data hasn't been an issue in forever... The browser saves it when you go back or forward. You don't even need to press "back" - you can even just refresh the error page and as long as you click "yes" to the pop-up telling you you're resubmitting a POST, the form will submit with the original data entered, no problem.... Of course, SPAs like to break this for no reason, stop doing that.