We have cssproxy enabled.
I was able to find something similar here: Disabling scriptproxy addon solves rendering problem on IE 9 but not IE 8 but I am told that "we do need to set whitelist urls and we dont have those configured. also the security gpo for the cross domain loading. "
1. What do they mean we do not need to set whitelists and gro?
2. Our programmers tell us that they are not getting Page Load Complete event when IE9 seems to freeze up.
Are there known issues between cssproxy / IE9 on windows 7? Do we really not need to set up whitelists to run salesforce in mixed content mode?
Peter on Fire