Zoho Webform Redirect

Zoho Webform Redirect

Hello
currently have a webform on my site (www.simplymh.co). Landing page address for form currently points to that same home page site. However - after form submission i'd like to redirect to an acknowledgement page. But - when I updated the landing page address to this acknowledgement page I no longer received the form data. It looks like changing the landing page resulted in a pop up being generated (webtoleads) and if pop up blocker is enabled  - data doesn't transfer. 

How do I change the landing page address and still receive the form data (without requiring this pop up)?