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Stop Google Web Accelerator In Your Rails Apps

·
class ApplicationController < ActionController::Base
  before_filter :disable_link_prefetching

  private
    def disable_link_prefetching
      if request.env["HTTP_X_MOZ"] == "prefetch" 
        logger.debug "prefetch detected: sending 403 Forbidden" 
        render_nothing "403 Forbidden" 
        return false
      end
    end
end

Code by David Heinemeier Hansson.
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