Topic on Extension talk:CategoryTree

I have the extension working, and have now the config:

$wgUseAjax = true;

require_once( "$IP/extensions/CategoryTree/CategoryTree.php" );

$wgCategoryTreeDynamicTag = true;

$wgCategoryTreeSidebarRoot = '[my top level category]';

$wgCategoryTreeForceHeaders = true;

When loaded the in-page tree loads fine, the categories heading appears for the portlet, but nothing else. The javascript console reports that categoryTreeloadChildren is undefined.

Using 1.21 on Chrome

any help appreciated

I have submitted a bug report to MediaWiki.