I cannot test my website in production mode using WebRick, as it is raising cache errors. In development and testing modes everything works perfectly.
I have set this option in config/environments/production.rb:
config.serve_static_assets = true
And then I ran:
bundle exec rake assets:precompile
Now I start up the server:
david$ rails s -e production
=> Booting WEBrick
=> Rails 3.2.1 application starting in production on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2012-01-31 19:52:35] INFO WEBrick 1.3.1
[2012-01-31 19:52:35] INFO ruby 1.9.3 (2011-10-30) [x86_64-darwin11.2.0]
[2012-01-31 19:52:35] INFO WEBrick::HTTPServer#start: pid=13329 port=3000
And when I go to http://localhost:3000 I get "We're sorry, but something went wrong.". In the terminal this is what it outputs:
cache: [GET /] miss
I'm stalled here. I have no clue in what to do.
The problem is with the asset pipeline, which has to be well configured in production mode, as files are not precompiled automatically.
In my case, I was inserting a javascript file (with javascript_include_tag) that was only present in one page, so it was not included in the application.js manifest.
In that case, the asset pipeline is not precompiling the file when running assets:precompile.
In order to include the missing file, we have to edit config/environments/production.rb and add this line:
config.assets.precompile += %w( script1.js )
You will notice that this line already exists, but it's commented. Read the comment for more clarification. For more info, look at the official asset pipeline guide.