Drupal module permissions - ajax

Question

When I run the code with an admin user, the module returns what it should. However, when I run it with a normal user, I get a 403 error. The module returns data from an AJAX call. I've already tried adding a 'access callback' => 'user_access'); line to the exoticlang_chat_logger_menu() function. I'd appreciate any pointers you might have.
Thanks for the help
The AJAX call:
jQuery.ajax({
type: 'POST',
url: '/chatlog',
success: exoticlangAjaxCompleted,
data:'messageLog=' + privateMessageLogJson,
dataType: 'json'
});
The module code:
function exoticlang_chat_logger_init(){
drupal_add_js('misc/jquery.form.js');
drupal_add_library('system', 'drupal.ajax');
}
function exoticlang_chat_logger_permission() {
return array(
'Save chat data' => array(
'title' => t('Save ExoticLang Chat Data'),
'description' => t('Send private message on chat close')
),
);
}
/**
* Implementation of hook_menu().
*/
function exoticlang_chat_logger_menu() {
$items = array();
$items['chatlog'] = array(
'type' => MENU_CALLBACK,
'page callback' => 'exoticlang_chat_log_ajax',
'access arguments' => 'Save chat data');
//'access callback' => 'user_access');
return $items;
}
function exoticlang_chat_logger_ajax(){
$messageLog=stripslashes($_POST['messageLog']);
$chatLog= 'Drupal has processed this. Message log is: '.$messageLog;
$chatLog=str_replace('":"{[{','":[{',$chatLog);
$chatLog=str_replace(',,',',',$chatLog);
$chatLog=str_replace('"}"','"}',$chatLog);
$chatLog=str_replace('"}]}"','"}]',$chatLog);
echo json_encode(array('messageLog' => $chatLog));
// echo $chatLog;
echo print_r(privatemsg_new_thread(array(user_load(1)), 'The subject', 'The body text'));
drupal_exit();
}

Answer 1

access arguments needs to be an array:
$items['chatlog'] = array(
'type' => MENU_CALLBACK,
'page callback' => 'exoticlang_chat_log_ajax',
'access arguments' => array('Save chat data')
);