Answered by : dercraker

 req.header('Origin'); req.header('Host'); // this method can be used to access other request headers like, 'Referer', 'User-Agent' etc.

Source : https://stackoverflow.com/questions/18498726/how-do-i-get-the-domain-originating-the-request-in-express-js | Last Update : Tue, 23 Aug 22

Answered by : httpsgithubcomgarzj

app.use((req, res, next) => { const host = req.get('host'); const origin = req.get('origin');
});

Source : | Last Update : Thu, 03 Sep 20