listWordReables regex contains unescaped dot
<regexp>text/tg.portalconfig\+xml</regexp>
would allow for publishing an item whose mimetype is text/tgXportalconfig+xml
.
see http://dev.textgridlab.org/1.0/tgpublish/listWorldReadables
i suggest changing to <regexp>text/tg\.portalconfig\+xml</regexp>
.
Edited by Mathias Goebel