Nodejs Express Return Error Code with Res.Render

check these:

app.use(function(req, res) {
    res.status(404);
    url = req.url;
    res.render('404.jade', {title: '404: File Not Found', url: url });
});

      // Handle 500
app.use(function(error, req, res, next) {
    res.status(500);
    url = req.url;
    res.render('500.jade', {title:'500: Internal Server Error', error: error, url: url});
});

I cannot find confirmation in Express docs but using:

res.status(statusCode).render(page)

Status and render the page correctly.

express: "4.17.1"