[squid-users] Guidance needed. Issues with WPAD and Firefox

[Erick Perez - Quadrian Enterprises]

On Wed, Oct 2, 2019 at 10:47 PM Erick Perez - Quadrian Enterprises
<eperez at quadrianweb.com> wrote:
>
> Hi, maybe somebody here experienced the same issues while working with
> WPAD files.
>
> I have a working Centos 7.6/SQUID v4.8 that works as expected.
> It works as long as I manually configure the proxy in the network
> settings of each workstation (windows) firefox browser 69.0.1 (64bit)
> and the same behavior with IE and Chrome.
>
> if I open http://squid_fqdn/wpad.dat the file gets downloaded and has
> all the info.
> apache logs show me the client is properly connecting and requesting the file.
>
> the wpad.dat has two lines
> #
> if (isPlainHostName(host)) return "DIRECT";
> return "PROXY squid_fqdn:8080";
> #
>
> However, the moment I switch to using WPAD, the browsers stop working,
> and I see nothing on the squid logs. So it seems it is a browser issue
> regarding the WPAD.
> Has anyone here knows in firefox what a PR_END_OF_FILE_ERROR   means?
>
> FWIW: I'm not using SSL bump, not caching anything and only using:
> #acl CONNECT method CONNECT
> my squid is only used for allowing access to specific domains.
>
> thanks for your help,
>
>
>
>
> --
>
> ---------------------
> Erick Perez


This image shows WPAD config in firefox. this is not working
https://ibb.co/D5302s6

This image shows manual configuration which is working fine.
https://ibb.co/cXgmxnj

There are no group policies, the computers used to test are NOT Active
directory domain joined and I have not configured any DHCP/DNS
options.