I've set up a Squid proxy which requires Windows Authentication. When Internet Explorer users try to use HTTPS websites, it just fails. FireFox users don't have this problem. I cannot imagine of any reason for this.
Please provide more information.
- When browsing HTTPS sites on Internet Explorer, do you see related activity in the Squid logs?
- When browsing HTTPS sites on Firefox, do you see related activity in the Squid logs?
- Using an authenticated proxy requires manually specifying the proxy server in the browser. Have you done this for Internet Explorer?
- When browsing HTTPS sites, the client endpoint must be aware of the proxy interception, so again the proxy needs to be set in the browser.