log errors when Deserialize fails

src/js/utils/serialization/Deserializer.js

@@ -21,8 +21,11 @@
       }
       deserializer.deserialize();
     } catch (e) {
+      console.error(e);
+      if (typeof onError === 'function') {
         onError(e);
       }
+    }
   };
 
   ns.Deserializer.prototype.deserialize = function () {