URL rewriting on first request

Hello!

On the very first request from a browser the created URLs in the page are 
created with URL rewriting and a jsessionid is appended. Thus the pages 
are not read from cache. On the next requests the server finds out, that 
the browser supports cookies and does not use URL rewriting anymore.

On your Jahia demo the jessionid is not appended even on first request. 
Can you please tell us, how you solved this? 

Greetings,
Benjamin Papez