How to return a proper 404 response for a 404 page (node)

Hi,

Easy enough to successfully route any non page URL/route to the 404 page.

Without this route, node properly responds with the correct 404 (by default).

When routed to a 404 page (through a catch all), there is no 404 response though.

I’ve set it up to call a server action as below.

However, the dev I work with says this still isn’t a proper response format/code for a 404 page.

Any ideas how to do it properly? Or not able to?

In Express (coding manually) it would just be.

app.get('*', function(req, res){
  res.status(404).send('formated code/message/error/html etc');
});

Thanks.