The response status code 304 Not Modified, i.e. Server unchanged this page from the moment the Client suggest checking. Therefore, the Server does not need to pay the required page content, only returns the header with code 304 said in the page cache is not outdated, the cache can send page are saved for this Client.May also be explained by using the function Follow TCP Stream.
đang được dịch, vui lòng đợi..
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