I am trying to override req but it seems to not work

for example

app.use((req, res, next) => {
    req.hostname = req.headers['x-forwarded-host'] || req.hostname;
    req.test = req.headers['x-forwarded-proto'] || req.protocol;
    req.protocol = req.headers['x-forwarded-proto'] || req.protocol;
    console.log(req.hostname);
    console.log(req.test);
    console.log(req.protocol);
    next();
})

If I have

x-forwarded-host = 'google.com' x-forwarded-proto = 'https'

I will have

req.hostname = '127.0.0.1'
req.test = 'https'
req.protocol = 'http'