Yes - it is the request over head - the client will still make the
request at which point the server has got to decide has it changed
before even - which for most static requests is the heaviest
(slowest) part before returning the not-changed response - and then
serving the content! You are better to: (a) set near future or mid future headers [ expires in a month or in a year] (b) alter filenames if you significantly change the file contents [ we use MD5 of content for js/css ] Note this is "hyper-tuning" of Apache... some people may want to enable it - it was originally set up when most users were on 28K/33.6K modems (or slower) and the transfer of data was the slow part of the equation! James On 09/06/2015 13:27, Frederik Nosi
wrote:
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