♢環境 Rails 3.2.12 ruby 1.9.3 ♢問題 Webrickが出す大量のログがデバッグ時に邪魔 Ex.1 GET "/assets/...系のログ Ex.2 これ → WARN Could not determine content-length of response body. Set content-length of the response or set Response#chunked = true ♢解法 Ex.1は config/initializersの中に「quiet_assets.rb」を作成 --quiet_assets.rb-- Rails.application.assets.logger = Logger.new('/dev/null') Rails::Rack::Logger.class_eval do def call_with_qui