I am having the same issue. And even though the json is returning after the notice about get_bloginfo, it is causing my ajax request to fail.
Error:
Notice: get_bloginfo was called with an argument that is deprecated since version 2.2! The home option is deprecated for the family of bloginfo() functions. Use the url option instead. in C:\—\wp-includes\functions.php on line <i>2923
Setting define(‘WP_DEBUG’, false); in wp-config.php fixes the issue but in development I obviously need error reporting on.
