Application-layer proxy 代理服务器
In order to overcome the same-origin policy, the portlet USES the Ajax proxy layer to access these domains.
为了克服相同来源政策，portlet会使用Ajax代理层来访问这些域。
The Ajax proxy layer intercepts the calls, and retrieves the content from the remote site, as shown in Figure 32.
Ajax代理层会截获访问，从远程站点上获取内容，如图32所示。
To overcome the same-origin policy restriction, WebSphere Portal offers a solution that is based on a server-side HTTP proxy, the Ajax proxy layer.
为了克服相同来源的限制，WebSphere Portal 提供了一个基于服务器端的 HTTP 代理方案，也就是 Ajax 代理层。
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