middlewares/cache.js

   1 ;(function () {
   2   'use strict'
   3
   4   var cacheMiddleware = {
   5     cache: cache
   6   }
   7
   8   function cache (cache) {
   9     return function (req, res, next) {
  10       // If we want explicitly a cache
  11       // Or if we don't specify if we want a cache or no and we are in production
  12       if (cache === true || (cache !== false && process.env.NODE_ENV === 'production')) {
  13         res.setHeader('Cache-Control', 'public')
  14       } else {
  15         res.setHeader('Cache-Control', 'no-cache, no-store, max-age=0, must-revalidate')
  16       }
  17
  18       next()
  19     }
  20   }
  21
  22   // ---------------------------------------------------------------------------
  23
  24   module.exports = cacheMiddleware
  25 })()