--- a/config/environments/development.rb	Fri May 31 09:10:37 2019 +0900
+++ b/config/environments/development.rb	Tue Oct 22 16:17:30 2019 +0900
@@ -16,6 +16,7 @@
   # Run rails dev:cache to toggle caching.
   if Rails.root.join('tmp', 'caching-dev.txt').exist?
     config.action_controller.perform_caching = true
+    config.action_controller.enable_fragment_cache_logging = true
 
     config.cache_store = :memory_store
     config.public_file_server.headers = {
@@ -27,9 +28,6 @@
     config.cache_store = :null_store
   end
 
-  # Store uploaded files on the local file system (see config/storage.yml for options)
-  # config.active_storage.service = :local
-
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
@@ -47,7 +45,7 @@
   # Suppress logger output for asset requests.
   config.assets.quiet = true
 
-  # Raises error for missing translations
+  # Raises error for missing translations.
   # config.action_view.raise_on_missing_translations = true
 
   # Use an evented file watcher to asynchronously detect changes in source code,