middlewares/cache.js

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