For the Ajax stuff those tools are more than useful, but developers have to reproduce as much as possible the target environement to not be stuck on a cross domain problem when depoying.
对于Ajax应用来讲，这些工具更有用，但是开发者必须尽量复现目标环境，以免在部署时被跨域问题搞得焦头烂额。
If the problem is that I am working local or related to cross-domain requests - why does the picture load (and show) just fine on the stage, and the errors only show just as I click on it?
如果问题是我在本地工作或与跨网域请求相关-为什么图片加载(和显示)在舞台上很好，错误只显示在我点击它？
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