If no matching response can be found, the request is forwarded to the requested origin server.
如果没找到匹配请求，则将请求转发到所请求的原始服务器。
Copy specific cookies from the client-portal conversation to the portal-origin server conversation.
将特定Cookie从客户机-门户对话复制到门户-原始服务器对话中。
The proxy approach is the best and probably most common solution today when XHR is calling a non-origin server.
当今，在XHR调用非原始服务器时，代理方法是最好或许也是最常用的一种解决方案。
The portal infrastructure might contain an optional reverse proxy, which is configured to receive requests on behalf of the origin server.
门户基础设施可能包含可选的反向代理，此代理被配置为代表原服务器接收请求。
The most effective solution is to change any links to them; that way, completely new representations will be loaded fresh from the origin server.
最好的办法是改变它们的链接，这样，新的副本将会从源服务器上重新下载。
The CDN is a cache, meaning that is has value when it can serve data directly and not need to contact the origin server.
CDN是一个缓存，这意味着只有直接提供数据而不需要和源服务器交互时才有价值。
With agent-driven negotiation, the user agent selects the best representation for a response after it receives an initial response from the origin server.
利用代理驱动的协商，用户代理可以在从原始服务器中接收最初响应后为该响应选择最佳表示形式。
After that time, caches will always check back with the origin server to see if a document is changed. Expires headers are supported by practically every cache.
过了这个时间，缓存器就会向源服务器发送请求，检查文档是否被修改。
By caching these objects on the edge server closer to the end users, Akamai can reduce the number of round trips to retrieve static content from the origin server.
通过把这些对象缓存在更接近最终用户的边缘服务器上，Akamai可以减少从起源服务器获取静态内容所需的往返次数。
If, on the other hand, the content is not in the cache or the cache entry has expired, then the edge server makes a request to the origin server to retrieve the information.
另一方面，如果在请求的内容不在缓存中或缓存已经过期，边缘服务器就会向源服务器发送请求来获得内容。
If, on the other hand, the content is not in the cache or the cache entry has expired, then the edge server makes a request to the origin server to retrieve the information.
另一方面，如果在请求的内容不在缓存中或缓存已经过期，边缘服务器就会向源服务器发送请求来获得内容。
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