I have a PAC file on my server with the following code:
function FindProxyForURL(url, host) { return "PROXY proxy.example.com:8080; DIRECT"; }
According to the WIKI page here - http://en.wikipedia.org/wiki/Proxy_auto-config, this means that "should this proxy fail to respond, the browser contacts the website directly, without using a proxy."
I have tested this in Firefox and Chrome and if the proxy server is down it still seems to work. However in IE9, if the proxy server is down, websites fail to load? It seems that IE is not contacting sites directly if the proxy is down, something which is not an issue with Firefox or Chrome.
Why is this happening?