Express.js - How to set a header to all responses
Just use a middleware statement that executes for all routes:
// a middleware with no mount path; gets executed for every request to the appapp.use(function(req, res, next) { res.setHeader('charset', 'utf-8') next();});And, make sure this is registered before any routes that you want it to apply to:
app.use(...);app.get('/index.html', ...);Express middleware documentation here.