Redirect http to https in FortiADC v7.6.0

Hi team,
I am configuring FortiADC and have configured 1 VIP for 10 realservers (Layer 7). Then I have configured content routing for each realserver and it works. However when I configure 'redirect http to https' it does not work.
Please guide me to configure Redirect using Content Rewriting feature.
Thanks.