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Questions tagged [pac]

A proxy auto-config (PAC) file defines how web browsers and other user agents can automatically choose the appropriate proxy server for fetching a given URL.

38 questions
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How to automatically configure username/password with proxy PAC file?

I have rather complex proxy setup and one of those proxies requires username/password. Is there a way to configure the username/password so that users don't have to enter them when traffic is redirected to this one proxy? Atleast returning PROXY…
Raynet
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How to debug pac file in chrome without alert function?

I recently experienced a problem with a new pac file with chrome, (same pac file with IE and Firefox works). I supposed that my problem is due to myIpAddress() function, see this post, which do not return my main ip address. I would like to make…
Antoine
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How can I debug PAC (proxy auto config) on Windows 8.1 (IE11 and Modern UI)?

On older systems such as Windows 7 + IE10, calling "alert()" in the PAC file would cause a dialog being shown. However, with Windows 8.1 no dialogs are displayed even if IE11 seems to be making use the PAC. My current situation is IE11 can use the…
Jackie Ku
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PAC files linking to other PAC files?

If I am in one autoproxy PAC file and returning the "PROXY xxx.com:80" option, can that link be to another PAC file? Do the url and host parameters for FindProxyForURL(url, host) stay the same or is there something lost? Continuing on the same…
beauXjames
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dnsResolve and isInNet functions Problem

We have a Proxy.pac file: function FindProxyForURL(url, host) { if (dnsResolve("ProxyServer") == "10.1.1.116") if (dnsDomainLevels(host) == 0 || isInNet(host, "10.0.0.0","255.0.0.0") || isInNet(host, "125.0.0.0","255.0.0.0")…
carloslone
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Internet / proxy problems Internet Explorer (PAC file)

we have some internet/proxy problems in our network since 2 weeks. Users are getting sporadic errors "This page can't be displayed" in Internet Explorer 11 when trying to access websites - but not the whole time. Sometimes it works for 10 minutes,…
Niko21
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using IPv6 addresses in proxy.pac

When creating PAC files, one can use functions like isInNet, for example if (isInNet(host, "10.9.9.9", "255.0.255.0")) return "DIRECT"; However, it doesn't make sense to use IP and wildcard/mask when using IPv6 address. My question is, what is the…
user687083
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2 answers

Why does "file:///Users/username/Library/proxy.pac" not work in MacOS?

I tested setting up a proxy.pac file via a web server: networksetup -setautoproxyurl "Wi-Fi" "http://localhost/proxy.pac" and via a file directly: networksetup -setautoproxyurl "Wi-Fi" "file:///Users/username/Library/proxy.pac" The web server…
Peter
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Automatic Proxy Configuration Script - Lab Setup Process

I have a requirement to set a test machine which utilises automatic proxy configuration using a WPAD.DAT file. This is to replicate a customer environment (that we can't use for testing) so we may develop a fix for one of our software packages. I…
Damo
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How Do I Prevent MSIE 8 From Reloading PAC File?

Exactly what the title says. I need to stop IE 8 from reloading the PAC file on every request the browser makes. I only require it to load once per session.
darkAsPitch
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Proxy not working via (.PAC file) for specific app

I'm having some strange problem, In company we moved to new proxy. And we applied it via .PAC file to user machines. Internet working fine, but MS Teams not working. But when I set manually on PC Proxy Server setup option http://proxy.example.com of…
ShukurBB
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Prevent MSIE 8 from reloading PAC file

How do I prevent Internet Explorer from reloading the PAC file? I need to stop IE8 from reloading the PAC file on every request the browser makes. I only require it to load once per session.
darkAsPitch
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Global (computer-wide) proxy settings from pac file

Our company just changed proxy settings from using one proxy server to a bunch and inserted pac files to IE settings. The problem is, any software that doesn't allow setting proxy script (pac file) explicitly, can't get online any more. I wanted to…
Andrey
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How to convert a pac script into Linux-style proxy environment variables?

On Windows machines (and networks with a lot of Windows machines), the use of Proxy Autoconfiguration scripts is rather ubiquitous for reasons; on Linux distributions (e.g. CentOS), it is more common for applications to consult several environment…
einpoklum
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Proxy.pac file - accessing a site on non standard port to be sent direct

We are about to start using a proxy.pac file in our environment. It will be a very simple file with most traffic going to the proxy but a handfull of sites going direct (where they are hosted internally etc). We have a couple of sites that need…
Kip
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