今天把新 project 推上 heroku ，發現如下錯誤： -----> Heroku receiving push -----> Ruby/Rails app detected -----> Detected Rails is not set to serve static_assets Installing rails3_serve_static_assets... done -----> Configure Rails 3 to disable x-sendfile Installing rails3_disable_x_sendfile... done -----> Configure Rails to log to stdout