I have tried the Tree based menu in wicket ,
I have used the same code as mentioned below link to create a menu.
http://www.wicket-library.com/wicket-examples/nested/?0
While deploying the same code into our server ,
The +,- symbol is not loaded,When i check in console, I am to see the code for +,- symbol but corresponding code and css is disabled.
So html is rendered but disabled , for example I am able to see below html code in console but disabled(to show minus in menu)
<span class="minus"></span>
can anybody please help me?