typo fix apiUrlPrefix

lib/apis.js

@@ -742,7 +742,7 @@ module.exports.create = function (xconfx, apiFactories, apiDeps) {
         enumerable: true
       , configurable: false
       , writable: false
-      , value: 'https://' + clientApiUri + '/' + pkgId
+      , value: 'https://' + clientApiUri + '/api/' + pkgId
       });
       Object.defineProperty(req, 'experienceId', {
         enumerable: true