Lync 2013 client doesn't read proxy.pac file Lync exclusions

Question

Hi all,
I have a very annoying issue where by the Lync 2013 client ignores the proxy.pac file exclusions set below:
(host == "lync.test.domain") || (host == "lyncdiscoverinternal.test.domain") ||
(host == "lyncwacdca.test.domain") ||
(host == "lyncwacdcb.test.domain") ||
(host == "lyncwebintdca.test.domain") ||
(host == "lyncwebintdcb.test.domain")
IE is set to use automatic configuration script of
http://proxy.test.domain:8083/proxy.pac This file can be reached through and IE browser, downloaded and it's syntax read.
If I set my proxy server and exclusions manually within IE9 then they are adhered to. That is Lync 2013 is able to read.
My thinking: that some application may be iterferring with Lync 2013 getting to
http://proxy.test.domain:8083/proxy.pac or reading in the exclusions set within the file.
If I enter https://lync.test.domain into the browser URL search field I can see that it is being sent straight out to the proxy as opposed to bypassing it.
Does anyone have an example of their proxy.pac exclusion set for Lync 2013 just in case my syntax is not looking the best.
Cheers

Answer 1

Update to this issue - solution was to move the proxy exclusions to the top of the proxy.pac
Outcome resulted in Windows WinHTTP processing the the Lync proxy exclusions prior to the Lync.exe firing during logon. I don't believe you would see this in a typical infrastructure. Since initially looking into this issue I  have been
able to show through packet traces, large periods of latency in delivery of desktop profile items due to backend profile storage issues.
In eddition this moving the exclusions to the top of the pac file I made use of substrings. I don't believe the use of substrings is any better or worst, but just easier for others to understand what the exclusion allows specifically.
Example of pac exclusion now:
if (url.substring(0,39) == "http://lyncdiscoverinternal.testdomain.") { return "DIRECT"; } //matches 31 characters including last . or period
I entered similar entries for all required exclusions. The result was Lync signing in within 6 seconds as opposed to the 40 second (through the user of legacy SRV records).