Change all "api" URLs. Ideally the path prefix would be an option.

lib/units/storage/plugins/image/index.js

@@ -20,7 +20,7 @@ module.exports = function(options) {
   app.set('trust proxy', true)
 
   app.get(
-    '/api/v1/s/image/:id/*'
+    '/s/api/v1/image/:id/*'
   , requtil.limit(options.concurrency, function(req, res) {
       return get(req.url, options)
         .then(function(stream) {