}
if ( $this->mCacheDuration ) {
- # If squid caches are configured, tell them to cache the response,
- # and tell the client to always check with the squid. Otherwise,
+ # If CDN caches are configured, tell them to cache the response,
+ # and tell the client to always check with the CDN. Otherwise,
# tell the client to use a cached copy, without a way to purge it.
if ( $this->mConfig->get( 'UseSquid' ) ) {
# Expect explicit purge of the proxy cache, but require end user agents
# to revalidate against the proxy on each visit.
- # Surrogate-Control controls our Squid, Cache-Control downstream caches
+ # Surrogate-Control controls our CDN, Cache-Control downstream caches
if ( $this->mConfig->get( 'UseESI' ) ) {
header( 'Surrogate-Control: max-age=' . $this->mCacheDuration . ', content="ESI/1.0"' );