class RorVsWild::Local::Middleware

def inject_into(html)
  if index = html.index("</body>")
    markup = File.read(File.join(LOCAL_FOLDER, "local.html.erb"))
    markup = ERB.new(markup).result(binding)
    markup = markup.html_safe if markup.respond_to?(:html_safe)
    html.insert(index, markup)
  end
  html
rescue Encoding::UndefinedConversionError => ex
  log_incompatible_encoding_warning(ex)
  nil
end