jquery_update.js?v=0.0.1:2 Uncaught TypeError: Cannot read property 'prototype' of undefined commerce_ajax_cart的问题

产品详情页面 js错误:

jquery_update.js?v=0.0.1:2 Uncaught TypeError: Cannot read property 'prototype' of undefined

 

https://www.drupal.org/project/commerce_ajax_cart 使用dev版本即可, release版本尚未修复. 可以参考 https://www.drupal.org/node/2280465 打补丁