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.
I haven't seen this behaviour before. The only thing that comes to mind is that caching of proxy autoconfiguration (PAC) scripts might be disabled. Even so, I wasn't aware that disabling such caching caused the script to be loaded more than once per browser session.
The setting is configurable via Group Policy at: User Configuration / Administrative Templates / Windows Components / Internet Explorer / Disable caching of Auto-Proxy scripts
In the registry, the policy setting lives at: