Accessing PAC files over HTTPS

Both standard and policy-specific PAC files can be accessed via HTTP or HTTPS URLs. Accessing PAC files over HTTPS provides an additional level of security. The standard PAC file HTTPS URL retrieves the PAC file over port 8087. Browsing is performed via port 8081.

For users accessing the service via networks where these ports are locked down, the alternate HTTPS PAC file URL should be used. This uses port 443 to access the PAC file, and port 80 for browsing.