microchip78 Posted February 11, 2011 Share Posted February 11, 2011 I am trying to understand how Cache-Control works when you define using header function in PHP. If I specify Cache-Control "max-age=3600, must-revalidate" in php using header function Does browser/proxy cache(liek Squid/Akamai) go all the way to orgin server to validate before max-age expires? Or will it serve content from cache till max-age expires? What if I want to a browser to check for any updated file before max-age expires ? Link to comment https://forums.phpfreaks.com/topic/227323-php-header-cacheing-issue/ Share on other sites More sharing options...
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