W3 total cache caches pages for HTTPS 'uniquely' what does that mean?
Short version: this means that the page caching rules will not cache HTTPS specific pages by default. So (http : // example . com / page1) would be cached but (https :// example.com / page2) would not be.
Making this true then cause the cache to automatically create a specific SSL version of the page cache.
By default the option is set to false:
'pgcache.cache.ssl' => array( 'type' => 'boolean', 'default' => falseIf set to true then:
/** * Set HTTPS */ if ( $config->get_boolean( 'pgcache.cache.ssl' ) ) { $rules .= " RewriteCond %{HTTPS} =on\n"; $rules .= " RewriteRule .* - [E=W3TC_SSL:_ssl]\n"; $rules .= " RewriteCond %{SERVER_PORT} =443\n"; $rules .= " RewriteRule .* - [E=W3TC_SSL:_ssl]\n"; $env_W3TC_SSL = '%{ENV:W3TC_SSL}'; }