Express.js + connect-cache

app.js

// refer http://www.bishen.org/content/35579925757

var express = require('express')
    , ejs   = require('ejs')
    , routes= require('./routes')
    , cache = require('connect-cache');
   
var app = module.exports = express.createServer(
    cache({rules: [
        {regex: /.*/, ttl: 21600000},
        {regex: /content\/.*/, ttl: 864000000}
    ]})
);