ATS and Automatic Proxy Discovery

Hello;

A customer is using Automatic Proxy Discovery, and while investigating the issue,

i noticed that Automatic Proxy Discovery will try to get proxy server/port from
http://wpad.subdomain.domain.local/wpad.dat
or http://wpad.domain.local/wpad.dat
or http://wpad.com/wpad.dat
Woud this mean that the application info.plist needs to have these
"NSExceptionDomain" key dict in the application Info.plist
to make it work?
If yes, this would mean the Info.plist is specify per customer?
If yes, is there a way to automatic set the Info.plist upon installation?
If yes, what about if the 'application' is a plugin in a master application of a Third party?
best regards