JavaScript caching is not enabled in "production" mode

[BoJo]

I have switched the <mode> in my spring.xml file from "development" to "production" as follows:

        <!-- Pick the mode: development, preview, production -->			    
        <mode>production</mode>

I expected this to enable JavaScript caching for my JavaScript controllers under WEB-INF/webscripts*/*-get.js. From the debugger, I see that these controllers are instances of WebApplicationStoreScriptContext which has the following implementation for isCachable():

        public boolean isCachable()
        {
            return false;
        }

I was expecting the JavaScript controller to be an instance of ClassPathScriptLocation which IS cachable.

Is there is a way to get my controllers to load as ClassPathScriptLocation (or another type) so that caching will be enabled rather than WebApplicationStoreScriptContext ?

Thanks,

Bob

P.S. We are experiencing Surf performance issues in production. From jProfiler, I see that FreeMarker and JavaScript processing are CPU intensive.