debug_assets?

# File actionpack/lib/sprockets/helpers/rails_helper.rb, line 74
      def debug_assets?
        begin
          Rails.application.config.assets.compile &&
            (Rails.application.config.assets.debug ||
             params[:debug_assets] == '1' ||
             params[:debug_assets] == 'true')
        rescue NoMethodError
          false
        end
      end