We have a strange issue where external browsing fails for all sites in IE11 or Edge, but works fine in Chrome.
Our PAC file is hosted in the Zscaler cloud, the PAC file is the same for all our browsers. It is applied via GPO and the browser settings are showing the correct URL for the PAC file.
We can hit the PAC file URL and download it in IE and Chrome, so it appears that the browsers can get to the PAC file, Chrome can utilise it but IE cannot.
Anyone experienced a similar issue? Or any insight into differences in how IE and Chrome utilise the PAC file?