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Response Header Caching

HTTP servers prepend file data with a response header containing information about the file and the server, and this information can be cached and reused when the same files are repeatedly requested. Since the response header is tied to the underlying file, this cache does not need its own invalidation mechanism. Instead, when the mapping cache detects that a cached file has changed, the corresponding response header is regenerated.



Peter Druschel
1999-04-27