Reload the compass configuration with each request in case it changes.

lib/compass/configuration/helpers.rb

@@ -54,9 +54,7 @@ module Compass
       end
 
       def configure_sass_plugin!
-        return if sass_plugin_configured?
         require 'sass/plugin'
-        @sass_plugin_configured = true
         config = sass_plugin_configuration
         locations = config.delete(:template_location)
         Sass::Plugin.options.merge!(config)
@@ -67,10 +65,6 @@ module Compass
         end
       end
 
-      def sass_plugin_configured?
-        @sass_plugin_configured
-      end
-
       def sass_engine_options
         configuration.to_sass_engine_options
       end