Question: I have many of these "controllers": 

```
app.get('/',function(req,res){
    var stuff = { 'title': 'blah' };
    res.render('mytemplate',stuff);
});    

```

Notice res.render? I want to add this header to every response header I make:

`X-XSS-Protection: 0`

How can I add that response header automatically?

Answer: 
```
// global controller
app.get('/*',function(req,res,next){
    res.header('X-XSS-Protection' , 0 );
    next(); // http://expressjs.com/guide.html#passing-route control
});

```

Just make sure this is the first controller you add, order is significant.
You probably want to use [app.use](http://expressjs.com/api.html#app.use) with your own middleware:

```
app.use(function(req, res, next) {
    res.header('X-XSS-Protection', 0);
    next();
});

```