But at some point this string has to be in memory to be served down to the client.  And it really should ever get very big.  The angularjs `webjars-requirejs.js` is about 9K and is pretty large.  So if the developer had 100 WebJars we aren't exceeding 1M of memory.  The optimization we can make here is to cache the result so that we don't keep re-running this code for every request.