!$this->haveCacheVaryCookies()
) {
if ( $config->get( 'UseESI' ) ) {
+ wfDeprecated( '$wgUseESI = true', '1.33' );
# We'll purge the proxy cache explicitly, but require end user agents
# to revalidate against the proxy on each visit.
# Surrogate-Control controls our CDN, Cache-Control downstream caches