Manual:$wgCachePages/en

From Linux Web Expert

<translate> Cache</translate>: $wgCachePages
Allow client-side caching of pages
<translate> Introduced in version:</translate>pre 1.1.0
<translate> Removed in version:</translate><translate> still in use</translate>
<translate> Allowed values:</translate>(boolean)
<translate> Default value:</translate>true

Details

Allow client-side caching of pages. If $wgCachePages is true, MediaWiki will check the $_SERVER["HTTP_IF_MODIFIED_SINCE"] of the request and MediaWiki will respond with 304 Not Modified, if the page had not been modified since the last time it got requested.