$.data store in __proto__, if __proto__ has own cache

[[email protected]…]

Please, look example: ​http://jsfiddle.net/GwBxe/

At first case proto has own cache and can not create own cache to obj - he used cache of proto

But need own cache for obj, and his proto before they is different objects/

[dmethvin]

This is not a use case we plan on supporting. The primary use for $.data is to attach data to DOM elements.