Ticket #34669: 34669.diff

src/wp-includes/functions.php

@@ -2529 +2529 @@
                 $message = "<p>$message</p>";
         }
 
-        if ( isset( $r['back_link'] ) && $r['back_link'] ) {
+        $referer = wp_get_referer();
+
+        /** @todo: doc hook */
+        $r['back_link'] = apply_filters( '_default_wp_die_handler_back_link', $r['back_link'], $message, $title, $args, $referer );
+
+        if ( !empty( $r['back_link'] ) ) {
+                $back_url = 'javascript:history.back()';
+                if ( $r['back_link'] === 'referer' && $referer ) {
+                        $back_url = esc_url( $referer );
+                } else if ( is_string( $r['back_link'] ) ) {
+                        $back_url = esc_url( $r['back_link'] );
+                }
                 $back_text = $have_gettext? __('&laquo; Back') : '&laquo; Back';
-                $message .= "\n<p><a href='javascript:history.back()'>$back_text</a></p>";
+                $message .= "\n<p><a href='$back_url'>$back_text</a></p>";
         }
 
         if ( ! did_action( 'admin_head' ) ) :