Mounting a sub-app onto a router doesn't emmit the 'mount' event.

[tomasgvivo]

How to reproduce:

var express = require('express');
var subapp = express();
var app = express();

subapp.on('mount', () => {
    console.log('mounted');
})

app.use('/subapp', subapp);

app.listen(8080);

=> mounted

but

var express = require('express');
var subapp = express();
var app = express();

subapp.on('mount', () => {
    console.log('mounted');
})

var router = express.Router();

router.use('/subapp', subapp);
app.use(router);

app.listen(8080);

no log :P

[dougwilson]

Yes, this is working as intended. An app is only "mounted" on another app. Adding an app to a router does not run through the same semantics, namely how it links together the settings, locals, and more. This is as designed.

I hope this helps!