dart - Dart Polymer:当编译为JS时，从DOM中删除元素似乎已损坏？

Question

我正在尝试从DOM中删除元素，该元素是通过以下方式添加的:

document.body.children.add(new DivElement()..innerHtml = "Hello World");

编码

document.body.children.remove(document.body.children.last);

要么

document.body.children.removeLast();

在Dartium中可以正常工作，但在使用“断言失败”-错误编译为JS时在Chrome中无法运行。失败的断言为: assert(node instanceof Node);，并放置在shadow_dom.debug.js:3364:5中。看来要删除的节点不是Node的实例？

有什么解决方法吗？
Dart SDK版本是1.2.0，Chrome版本是32.0.1700.76 m。

Answer 1

来自jmesserly的bug:

Ah, this is a known limitation from Shadow DOM. Try:

document.querySelector('body')

Unfortunately, from previous bugs filed on https://github.com/polymer/ShadowDOM it is apparently not possible to fix this in the polyfill.

The only problematic members are directly accessing "document" and navigating the tree. As soon as you call a method (like querySelector), anything after that will work. If you use "body" a lot, then try:

final body = document.querySelector('body');