JSESSIONID not perssist

I have an server where run an Tomcat Server with an Java App.
Besides run also an Apache2 Server which work as reverse proxy where I had set 2 VirtualHosts.

#HTTP(www/non-www) -> HTTPS(non-www)
<VirtualHost *:80>

   ServerName mydom.com
   ServerAlias www.mydom.com

   Redirect permanent / https://mydom.com/

</VirtualHost>

#ACTIVATE HTTPS AND REVERSE PROXY -> myapp
<VirtualHost *:443>

   SSLEngine On

   SSLCertificateFile /opt/ssl/new/mydom.crt...

Code (ApacheConf):

JSESSIONID not perssist

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