rescue_action_in_public, local_request, 取消 local request

http://api.rubyonrails.com/classes/ActionController/Rescue.html#M000615
http://blog.hendrikvolkmer.de/2007/3/8/http-referer-and-redirect_to-back

[config/environments/development.rb]     
config.action_controller.consider_all_requests_local = false

#  force the request connect from outside
def local_request?
  false
end

#有上面兩個條件rescue_action_in_public才可以在local測
def rescue_action_in_public(exception)
  case exception 
  when ActionController::RoutingError
    redirect_to home_url
  else
    super
  end
end



<%= stylesheet_link_tag "defaults",  "paginator", :cache => 'css_cache' %>
<%= javascript_include_tag "jquery", "jquery.corner.js", "jquerypngfix.js", :cache => 'js_cache' %>

上述的這些 :cache 功能 如果 client ip 是從 local來 就不會跑, 不會生出 css_cache.css 或 js_cache.js