The LocalServer is a specialized URL cache intercepting requests and serving them locally when needed.
本地服务器是一个专用URL缓存，它拦截请求并在需要时由本地对其进行响应。
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The issue is that the majority of the WHATW specification was written after Gears was released, so the Database and LocalServer objects used in Gears are not compatible with WHATW - for now.