# File lib/em-http/decoders.rb, line 222
    def decompress(compressed)
      @header ||= GZipHeader.new
      if !@header.finished?
        compressed = @header.extract_stream(compressed)
      end

      @zstream ||= Zlib::Inflate.new(-Zlib::MAX_WBITS)
      @zstream.inflate(compressed)
    rescue Zlib::Error
      raise DecoderError
    end