When receiving a HEAD request, die() right before we start outputting content.

* Content doesn't make sense for HEAD requests
* Saves wear and tear on the server
* Introduces a filter: exit_on_http_head (we send TRUE through it)

fixes #14348. props mbijon, mitchoyoshitaka.

git-svn-id: http://core.svn.wordpress.org/trunk@22347 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Mark Jaquith 2012-10-31 21:39:23 +00:00
parent 57785c7fea
commit 08e68c1ec4

View File

@ -6,6 +6,14 @@
if ( defined('WP_USE_THEMES') && WP_USE_THEMES )
do_action('template_redirect');
/**
* Halt template load for HEAD requests. Performance bump by eliminating output
*
* @since 3.5.0
*/
if ( 'HEAD' === $_SERVER['REQUEST_METHOD'] && apply_filters( 'exit_on_http_head', true ) )
exit();
// Process feeds and trackbacks even if not using themes.
if ( is_robots() ) :
do_action('do_robots');