Why that onsubmit client script is not working in workspace

[mania]

Hi,

We have wrote BR and client script for when the before time worked field is updated it should show error message on problem form. Its working fine in problem form but when i checking the workspace (CSM/FSM configurable workspace) it is not working the same functinality. 

I have checked and set that ui type field is All and Isolated script check box is true on client script then also not working.

Can you please suggest me and help me on this, It will be very usefull.
Client script:

Thanks in Advance!

[scwillson]

Have you found a solution for this? I have the same issue with HR Workspace. Trying to make a field mandatory on close for a specific service.