ActionController::InvalidAuthenticityToken & :before

Here are more details from that error:

Processing DocdirController#search (for 127.0.0.1 at 2009-06-04
11:34:39) [POST]

ActionController::InvalidAuthenticityToken
(ActionController::InvalidAuthenticityToken):
  <internal:prelude>:8:in `synchronize'
  /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
  /usr/local/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
  /usr/local/lib/ruby/1.9.1/webrick/server.rb:183:in `block in
start_thread'

In your controller add
skip_before_filter :verify_authenticity_token

Hope this will help !

Sandip R~