Question

I am running my producction environment with following settings, and it appears that it is minifying but is not gzipping/compressing the response.

  # Disable Rails's static asset server (Apache or nginx will already do this)
  config.serve_static_assets = false

  # Compress JavaScripts and CSS
  config.assets.compress = true

  # Don't fallback to assets pipeline if a precompiled asset is missed
  config.assets.compile = false

  # Generate digests for assets URLs
  config.assets.digest = true

Here is my js file, and the headers dont contain gzip or deflate???

$ curl -I http://sctest-perf.herokuapp.com/assets/application-1d21d488644b11e5610fa26bacdbc868.js
HTTP/1.1 200 OK
Age: 0
Cache-Control: public, max-age=31536000
Content-length: 213394
Content-Type: application/javascript
Date: Fri, 08 Jun 2012 20:34:58 GMT
Etag: "1d21d488644b11e5610fa26bacdbc868"
Last-Modified: Wed, 30 May 2012 16:38:32 GMT
Status: 200 OK
X-Content-Digest: 914bc6f80b0619be63c1302821ccc24a082ace53
X-Rack-Cache: miss, store
X-Request-Id: 76cb22ef23b73c440878569eec42ed4d
X-Runtime: 0.001314
X-Ua-Compatible: IE=Edge,chrome=1
Connection: keep-alive

Answer 1

You need to edit the config.ru file, located in your project root:

require ::File.expand_path('../config/environment',  __FILE__)

# Add beautifully gzipped responses
use Rack::Deflater

run YourApp::Application