Why does IE not follow wpad.dat exclusions but follows proxy.pac exclusions? RRS feed

  • Question

  • Hello,
    I am facing an issue with the proxy configuration file extension while using "Use automatic configuration script" in IE.

    When using .dat, having an exclude:
    if (shExpMatch(url, "**")) return "DIRECT";
    if (dnsDomainIs(hsot, "")) return "DIRECT";
    if (localHostOrDomainIs(host, "")) return "DIRECT";

    Traffic to still goes through the proxy.

    When changing the proxy configuration file extension to .pac instead of .dat:
    Traffic to goes Directly to the Internet bypassing the proxy.

    User agents:
    Win10 IE11: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
    Win7 IE11: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko

    Have you seen this issue before? I have tested on both Windows 10 and Windows 7 IE 11.

    Thank you in advance,

    Tuesday, July 18, 2017 11:55 AM

All replies

  • Same issue here
    Tuesday, July 18, 2017 12:00 PM
  • Hi,

    you have typo's.....

    when did this start to occur?



    Tuesday, July 18, 2017 9:31 PM
  • Hello Rob,

    Few days ago, it started to happen suddenly. The strange thing is that the same file content are in the wpad.dat and the proxy.pac files.

    I cannot really find an explanation to why the wpad.dat file doesn't respect the excludes while the proxy.pac file respects them normally.



    Tuesday, July 25, 2017 10:31 AM