Need to use unsub WebApp inside Survey WebApp

Hi,

I am trying to add the Unsub web app to the Survey web app. 

I have tried the below steps:

1. create an option with the internal name of the unsub web app

2. defined the var to fetch it in Webapp using the following code.

var intName = getOption('optionInternalName');
ctx. vars.webappInternalName = intName;

3. then, I used this code to obtain the unsub page in my survey web app

<a href="<%= ctx.vars.intName %>" data-nl-type="entranalLink">

So, the Survey Webapp is working but the unsub link is not working. Can anyone please help resolve this?

Warm Regards,

Pallavi