Analytics not injecting CSPM script

Hi all

Trying to get page load times but not seeing the CSPM script added to page?

Using 11.6. Basically configured an Analytice Profile with almost everything checked. The Virtual Server has an iRule that uses STREAM profile, so the Accept-Encoding heading is removed from the HTTP REQUEST so we can replace items in the response. Also made sure we are using a supported browser, but still cannot see the CSPM script injected and hence the Analytics Dashboard is not showing page load times.

What else can I check?

Thanks in advance.