从父级单击时，jQuery Trigger不适用于子元素

Question

标记。

<div class="back">
    <div class="item-container">
       <h2>
            <a href="http://google.com" title="" rel="bookmark">
                ABC                     
            </a>
        </h2>
    </div>
</div>

尝试运行此功能，

jQuery('.back').click(function(){jQuery(this).find('h2 a').trigger('click')})

获得以下错误，

<error>jquery.js?ver=1.10.2:5 x.event.dispatchjquery.js?ver=1.10.2:5 v.handlejquery.js?ver=1.10.2:5 x.event.triggerjquery-migrate.min.js?ver=1.2.1:2 e.event.triggerjquery.js?ver=1.10.2:5 (anonymous function)jquery.js?ver=1.10.2:4 x.extend.eachjquery.js?ver=1.10.2:4 x.fn.x.eachjquery.js?ver=1.10.2:5 x.fn.extend.triggerVM2113:2 (anonymous function)jquery.js?ver=1.10.2:5 x.event.dispatchjquery.js?ver=1.10.2:5 v.handle