Only generate pingback url header tag when relevant

Ref: Automattic/_s#853
digitoimistodude · Sep 23, 2016 · 0f7fcc9 · 0f7fcc9
1 parent ee66140
commit 0f7fcc9
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/functions.php b/functions.php
@@ -121,6 +121,16 @@ function air_dev_adminbar() { ?>
   show_admin_bar(false);
 }
 
+/**
+ * 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' ), '">';
+	endif;
+}
+add_action( 'wp_head', '_s_pingback_header' );
+
 /**
  * Custom uploads folder media/ instead of default content/uploads/.
  * Comment these out if you want to set up media library folder in wp-admin.

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' ); ?>">
 
 <!-- Oh, those icons. Generate: http://realfavicongenerator.net/ -->
 <link rel="apple-touch-icon" sizes="57x57" href="<?php echo esc_url( get_template_directory_uri() ); ?>/images/favicons/apple-touch-icon-57x57.png">