> along an upload progress indicator

I could be misremembering, but didn't browsers used to have this built in? Like there used to be a status bar that showed things like network activity (before we moved to a world where there is always network activity from all of the spying), upload progress, etc.

I don't remember if it was in Firefox, but SeaMonkey even has a "pull the plug" button to quickly go offline/online in the status bar.

Bizarre that "progress" is removing basic functionality and then paying legions of developers to re-add it in inconsistent ways everywhere.