HTTP optimization : advanced client caching and browser behavior

Hello the ML !

I wonder what is the best practice to enforce object caching in client's browser. I usually set the Cache-control header to "max-age=xxx" seconds.

I suppose the Pragma:no-cache directive is not used by anyone now, and I know the cache-control directive overrides the "Expires" when using the max-age parameter, but between the Cache-control, Expires, Etag and Last-modified headers, is there any best practice to enforce client caching by using a header rewrite in the Load balancer ?

I personnally prefer to use Cache-control and Expires as there is no conditionnal request when a user is browsing a site to revalidate objects.

Has anyone ever played with this kind of feature ?

regards,

Surya

router# show problem | include solution

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