Citrix StoreFront via SSL VPN Web Mode

Hi,

we want to use our Fortigate to give access vai SSL VPn / Web Mode to our Citrix Storefront (web receiver) . We've configured a portal and have web access to the storefront (html5).  The receiver stats also. We can see the Desktops / Applications.

If we want to start a Desktop (HTML5), a new windows is opened, but nothing happens.

Thnaky for help, Ricardo

FortiGate 100E / v5.6.2 build1486 (GA)