Ticket #3782: hreflang.patch

wordpress.org/public_html/wp-content/themes/pub/wporg/functions.php

@@ -159 +159 @@
 function hreflang_link_attributes() {
         wp_cache_add_global_groups( array( 'locale-associations' ) );
 
+        // Google doesn't have support for a whole lot of languages and throws errors about it, so we exclude them, as we're
+        // otherwise outputting data that isn't used at all.
+        $unsupported_languages = array(
+                'arq',
+                'art',
+                'art-xemoji',
+                'ary',
+                'ast',
+                'az-ir',
+                'azb',
+                'bcc',
+                'ff-sn',
+                'frp',
+                'fuc',
+                'fur',
+                'haz',
+                'ido',
+                'io',
+                'kab',
+                'li',
+                'li-nl',
+                'lmo',
+                'me',
+                'me-me',
+                'rhg',
+                'rup',
+                'sah',
+                'sc-it',
+                'scn',
+                'skr',
+                'srd',
+                'szl',
+                'tah',
+                'twd',
+                'ty-tj',
+                'tzm',
+        );
+
         if ( false === ( $sites = wp_cache_get( 'local-sites', 'locale-associations' ) ) ) {
                 global $wpdb;
 
@@ -176 +214 @@
                                 continue;
                         }
 
-                        if ( isset( $gp_locale->slug ) ) {
+                        if ( isset( $gp_locale->slug ) && ! in_array( $gp_locale->slug, $unsupported_languages ) ) {
                                 $sites[ $site->locale ]->hreflang = $gp_locale->slug;
                         } else {
                                 unset( $sites[ $site->locale ] );