1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

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

Discussion in 'Internet Explorer' started by Christopher Savas, Sep 19, 2010.

  1. Christopher Savas

    Christopher Savas Flightless Bird

    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?
     
  2. Rob

    Rob Flightless Bird

    Christopher Savas <savas.christopher@gmail.com> 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.
     

Share This Page