/**
* Get the JS content for a request (JsUri)
*/
protected String getFeaturesContent(JsUri jsUri) throws GadgetException {
// Inject js content, fetched from JsPipeline
JsRequest jsRequest = new JsRequestBuilder(jsUriManager,
featureRegistryProvider.get(jsUri.getRepository())).build(jsUri, null);
JsResponse jsResponse;
try {
jsResponse = jsServingPipeline.execute(jsRequest);
} catch (JsException e) {