Catch-all expressjs route gets executed even after first matching res.send() is handled. Discussed here: https://groups.google.com/forum/#!topic/express-js/QVxp1YXkgqE

gistfile1.txt

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

app.get('/', function(req, res){
    console.log('/');
    res.send('first');
});

app.get('/about', function(req, res){
    console.log('/about');
    res.send('second');
});

app.get('/:username', function(req, res){
    console.log('/:username');
    res.send('third');
});

app.listen(3000);
console.log('listening on port 3000');