# File lib/typhoeus/response.rb, line 31
    def headers_hash
      @headers_hash ||= begin
        headers.split("\n").map {|o| o.strip}.inject(Typhoeus::NormalizedHeaderHash.new) do |hash, o|
          if o.empty? || o =~ /^HTTP\/[\d\.]+/
            hash
          else
            i = o.index(":") || o.size
            key = o.slice(0, i)
            value = o.slice(i + 1, o.size)
            value = value.strip unless value.nil?
            if hash.has_key? key
              hash[key] = [hash[key], value].flatten
            else
              hash[key] = value
            end

            hash
          end
        end
      end
    end