# File lib/selenium/webdriver/common/zipper.rb, line 34
        def zip(path)
          with_tmp_zip do |zip|
            ::Find.find(path) do |file|
              unless File.directory?(file)
                add_zip_entry zip, file, file.sub("#{path}/", '')
              end
            end

            zip.commit
            File.open(zip.name, "rb") { |io| Base64.strict_encode64 io.read }
          end
        end