Nokogiri wtf

Gemfile

source 'https://rubygems.org'

gem 'rails', '3.2.13'
gem 'thin'
gem 'mysql2'
gem 'slim'
gem 'foreman'

# Model easing
gem 'active_attr'

# Md processing
gem 'redcarpet'

# background processing and autoscaling
gem 'sidekiq'
gem 'autoscaler'

# image processing 
gem 'image_size'
gem 'carrierwave'
gem 'fog'
gem 'sinatra', '~> 1.2', :require => 'sinatra/base'

# cache
gem 'rack-cache', :require => 'rack/cache'
gem 'dalli'

# parser
gem 'nokogiri'

# Api interaction
gem 'rest-client'

# Pub/Sub
gem 'private_pub'

group :development, :test do
	gem 'dotenv'

	# Generators
	gem 'slim-rails'
  gem 'rails3-generators'

  # Better debugging
	gem 'better_errors'
	gem 'binding_of_caller'#, "~> 0.6.9.pre2"
	gem 'pry-rails'
	gem 'awesome_print'
  gem 'meta_request', '0.2.1'

	# Test
	gem 'factory_girl_rails'
	gem 'rspec-rails'
	gem 'database_cleaner'
	gem 'faker'
end

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'
  gem 'uglifier', '>= 1.0.3'
  gem 'compass-rails'
end

gem 'jquery-rails'

gistfile1.txt

class SitesController < ApplicationController
	def show
		@site = Site.find(params[:id])

		@with_nokogiri    = Nokogiri::HTML(open('http://www.femmeactuelle.fr/').read).to_html
		@without_nokogiri	= open('http://www.femmeactuelle.fr/').read

		if params.has_key? :nokogiri
			render text: @with_nokogiri, layout: false
		else
			render text: @without_nokogiri, layout: false
		end
		#render layout: false
	end
end

la ligne 5 à remplacer par @with_nokogiri = open("http://www.femmeactuelle.fr/") { |f| Hpricot(f) }

Si tu utilises hpricot