title: Page caching trick on Heroku?
body: <p>I am moving a rails app to Heroku.
  Heroku doesn't seem to support page caching.
  So I generated cached pages on my development machine and checked them in to Heroku.</p>
  
  <p>For example, /about_us generates public/about_us.html.
  But when I call /about_us, public/about_us.html doesn't seem to be called.</p>
  
  <p>Should my trick work?</p>
  
  <p>Thanks.</p>
  
  <p>Sam</p>