Confirmation popup for portal

[SO10]

Hi all.
I have added a UI Action button to delete a record to the CSM portal's form.
When the button is clicked, I would like to appear the following confirmation popup message, but this does not work in the portal.

How can I get this to appear?
Thank you.

[Ankur Bawiskar]

@SO10 

how it's written? share the script

[SO10]

@Ankur Bawiskar 
Thank you for your reply.
Currently it is a simple script as below...

current.deleteRecord();

[Ankur Bawiskar]

@SO10 

on portal you cannot run client side UI actions

Check this link has workaround

How To: Enable Client Side UI Actions on Service Portal (OOTB Form Widget, No Clone required!) 

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