Place LDAPServer.js 
into
WINDOWS: 
[NFAPATH]/digitollFE/pages/digitoll/login/js
LINUX:
/usr/local/digitoll/webgui/digitoll/pages/digitoll/login/js"
On linux, you also need to 
"chown digitoll.digitoll /usr/local/digitoll/webgui/digitoll/pages/digitoll/login/js/LDAPServer.js"