node-fresh
HTTP response freshness testing
fresh(req, res)
Check freshness of req and res headers.
When the cache is "fresh" true is returned, otherwise false is returned to indicate that the cache is now stale.
Example:
var req = { 'if-none-match': 'tobi' };
var res = { 'etag': 'luna' };
fresh(req, res);
// => false
var req = { 'if-none-match': 'tobi' };
var res = { 'etag': 'tobi' };
fresh(req, res);
// => true
Installation
$ npm install fresh