enhance staging mode in order to show errors and web_console

config/environments/staging.rb

@@ -10,9 +10,12 @@ Rails.application.configure do
   # Rake tasks automatically ignore this option for performance.
   config.eager_load = true
 
-  # Full error reports are disabled and caching is turned on.
-  config.consider_all_requests_local       = false
-  config.action_controller.perform_caching = true
+  #enable web console in staging
+  config.web_console.development_only = false
+
+  # Show full error reports and disable caching.
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
 
   # Enable Rack::Cache to put a simple HTTP cache in front of your application
   # Add `rack-cache` to your Gemfile before enabling this.