Application page not loading correctly

Hi All,

I have configured a virtual server an iRule to direct traffic to different servers, all except one application page is not loading correctly, in the browsers I am getting - {{alert message}} . Please see the error attached, it seems some of the the angular js is not loading correctly.

The strange this is - if I remove the iRule for that application and use POOL, it works fine.

While if we access the Application bypassing the F5 and directly on the server it works fine.

Please suggest how to fix it ?