```ruby
require_relative 'boot'

require 'action_controller/railtie'
require 'action_view/railtie'
require 'active_model/railtie'
require 'sprockets/railtie'

Bundler.require(*Rails.groups)

module Frontend
  class Application < Rails::Application

    # Configure sensitive parameters which will be filtered from the log file.
    config.filter_parameters += [:password]

    # Configure cookie session store.
    config.session_store :cookie_store, key: '_mas_session'

  end
end
```

Configure additional assets to precompile
user
```ruby
require_relative 'boot'

require 'action_controller/railtie'
require 'action_view/railtie'
require 'active_model/railtie'
require 'sprockets/railtie'

Bundler.require(*Rails.groups)

module Frontend
  class Application < Rails::Application

    # Configure sensitive parameters which will be filtered from the log file.
    config.filter_parameters += [:password]

    # Configure cookie session store.
    config.session_store :cookie_store, key: '_mas_session'

    # Configure additional assets to precompile
    config.assets.precompile += %w(styleguide.css basic.css enhanced_fixed.css enhanced_responsive.css)

  end
end
```
assistant