I try to put my req.user value in the global variable for all views with 
app.use(function(req, res, next){
    res.locals.user = req.user; // this line
    res.locals.success = req.flash('success');
    res.locals.error = req.flash('error');
    next();
});
but nothing works. I have to put it on every render() function. What did I do wrong?
Thank you for your help!
 
     
     
    