Those barebones ‘XXX Error’ pages are sent from the server and rendered in the browser just like the post talks about. Browsers have always handled the html ret

Those barebones ‘XXX Error’ pages are sent from the server and rendered in the browser just like the post talks about. Browsers have always handled the html returned with the error code in the same way (by showing it to the user). The only difference from the old days is that now sites show a nicer page instead of using the default barebones error pages.