gist: 224812 - no-www rack middleware- GitHub


  
    
      no_www.rb #
    
    
      
      
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              class NoWWW
 
  STARTS_WITH_WWW = /^www\./i
  
  def initialize(app)
    @app = app
  end
  
  def call(env)
    if env['HTTP_HOST'] =~ STARTS_WITH_WWW
      [301, { 'Location' => Rack::Request.new(env).url.sub(/www\./i, '') }, ['Redirecting...']]
    else
      @app.call(env)
    end
  end
  
end
Description:	no-www rack middleware
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