Merge pull request #853 from jrfnl/feature/conditional-pingback-header

Only generate pingback url header tag when relevant.
Automattic · Sep 2, 2016 · ff4b374 · ff4b374
2 parents f9471cd + 9638b7e
commit ff4b374
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/header.php b/header.php
@@ -15,7 +15,6 @@
 <meta charset="<?php bloginfo( 'charset' ); ?>">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <link rel="profile" href="http://gmpg.org/xfn/11">
-<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
 
 <?php wp_head(); ?>
 </head>

diff --git a/inc/extras.php b/inc/extras.php
@@ -27,3 +27,13 @@ function _s_body_classes( $classes ) {
 	return $classes;
 }
 add_filter( 'body_class', '_s_body_classes' );
+
+/**
+ * Add a pingback url auto-discovery header for singularly identifiable articles.
+ */
+function _s_pingback_header() {
+	if ( is_singular() && pings_open() ) {
+		echo '<link rel="pingback" href="', bloginfo( 'pingback_url' ), '">';
+	}
+}
+add_action( 'wp_head', '_s_pingback_header' );