Disable alert "Changes you made may not be saved." for particular catalog form on Service Portal

[Community Alums]

Hello Developers,

We have requirement for Service Portal catalog form. We need to redirect from one form to another form without knowing the end user. If end user selects any particular value then form will redirect to another form but we are getting alert box -
"Changes you made may not be saved".  Thing is if they click on cancel, they will not redirect to another form and we want to prevent this case.                                                                                                                           

Is there anyway to disable this alert for particluar catalog form only.

Thanking you.

Regards,

Akshay

[hammad ul aziz2]

did you tried this

top.window.onbeforeunload = null;