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From Graham Leggett <>
Subject Re: More thoughts on caching in v2.0 - filtering
Date Wed, 23 Aug 2000 07:42:46 GMT
Dave Jones wrote:

> It sounds like there is an open-ended list of attributes to qualify
> each cache entry and the cache handler will have to know about
> every one (yuck!).

Not at all - such a caching module would simply behave like any HTTP
proxy - content negotiation will ensure that the correct cached object
is sent to the client. It's all catered for already in HTTP - there is
no need to reinvent the wheel.

> A cache entry also has meta-data associated with it (refresh/replacement
> policy info) that the filter would have to pick up from somewhere.

It will pick this up from Cache-Control, Pragma, Vary, and other
associated headers.


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