title: Rails 3.1.0.rc4: 304 Not Modified. Is there any known working configuration?
body: <p>Trying the basic example in rails 3.1 RC 4, I get the error</p>
  
  <pre><code>Compiled app/assets/javascripts/application.js
  Served asset /application.js - 304 Not Modified
  </code></pre>
  
  <p>(same with .css and asset/rails.png on the default index page)</p>
  
  <p>My workflow is:</p>
  
  <ul>
  <li><p>rails new example -j</p></li>
  <li><p>rails g Book name:string year:integer</p></li>
  <li><p>rake db:migrate</p></li>
  </ul>
  
  <p>I get this error on both linux 64bit and win7 32 bit.
  I tried many suggestions, but couldn't get it working. Is there anyone out there able to manage this known issue? Any configuration that works (combination of gems or asset setting configuration)?</p>
  
  <p>[Here's my win7 gemlist:
  abstract (1.0.0)
  actionmailer (3.1.0.rc4)
  actionpack (3.1.0.rc4)
  activemodel (3.1.0.rc4)
  activerecord (3.1.0.rc4)
  activeresource (3.1.0.rc4)
  activesupport (3.1.0.rc4)
  arel (2.1.3)
  bcrypt-ruby (2.1.4 x86-mingw32)
  builder (3.0.0)
  bundler (1.0.15)
  coffee-script (2.2.0)
  coffee-script-source (1.1.1)
  erubis (2.7.0)
  execjs (1.2.0)
  hike (1.1.0)
  i18n (0.6.0)
  jquery-rails (1.0.12)
  json (1.5.3)
  mail (2.3.0)
  mime-types (1.16)
  multi_json (1.0.3)
  polyglot (0.3.1)
  rack (1.3.0)
  rack-cache (1.0.2)
  rack-mount (0.8.1)
  rack-ssl (1.3.2)
  rack-test (0.6.0)
  rails (3.1.0.rc4)
  railties (3.1.0.rc4)
  rake (0.9.2)
  rdoc (3.7)
  sass (3.1.3)
  sass-rails (3.1.0.rc.3)
  sprockets (2.0.0.beta.10)
  sqlite3 (1.3.3 x86-mingw32)
  thor (0.14.6)
  tilt (1.3.2)
  treetop (1.4.9)
  tzinfo (0.3.29)
  uglifier (1.0.0)
  win32-open3 (0.3.2 x86-mingw32)]</p>