Ticket #19524: 19524.2.diff

wp-admin/load-scripts.php

@@ -92 +92 @@
  */
 function wp_guess_url() {}
 
+if ( ! function_exists( 'json_encode' ) ) :
+/**
+ * @ignore
+ */
+function json_encode() {}
+endif;
+
 function get_file($path) {
 
         if ( function_exists('realpath') )