属性继承通过遍历元素树来工作。
Property inheritance works by traversing a tree of elements.
对象树是XML文件中元素树的精确映射。
The tree of objects is an exact map of the tree of elements in the XML file.
按照我的测试，在弹出对像中包含快捷菜单改变了页面的元素树并影响查看源代码窗口，不能显示。
According to my tests, having the context menu in the popup object alters the page's tree of elements and this seems to have repercussions on the View Source window; it just doesn't show up.
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