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Re: Proxy.pac no longer works after upgrade(s) ...

 
 
Rob
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      09-13-2010
Christopher Savas <> wrote:
> Long story short: I've been in my current office for just a couple of
> months, and dropped on my desk was a project that has been passed from
> one person to another for probably about a year now. Apparently,
> around the same time there were numerous new roll-outs and upgrades
> (MSIE7, a new version of Java, servers being upgraded from 2000 to
> 2003, etc.), the local proxy file quit working.
>
> I've downloaded a copy of the proxy.pac file from our Corporate server
> and opened it in Notepad, side by side with the local proxy.pac file
> that we publish to an internal web server here and apply to restricted
> accounts via GPO on login. The GPO applies the proxy.pac file, but it
> doesn't work - sites that are allowed never show up (you just get a
> "Page cannot be displayed" error eventually), and sites that are not
> allowed, which should re-direct to a locally stored "Email your
> Director to get this unblocked" type of page behave the same way -
> "Page cannot be displayed."
>
> I can't find any difference between our in house system & the
> Corporate one, and this thing died long before I came on site, so I
> have no idea what change (of the many) preceeded it. Any thoughts /
> help / input?


There was an error in IE that caused trouble with this kind of
proxy setup. Basically the IE failed to parse correct files.

It was fixed with a Hotfix from Microsoft.
 
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