When opening https site, the "Add security exception" page is displayed. After you click on "Confirm security exception", you are not able to open the https site. The https site is displayed only after adding/clicking on "Confirm security exception" two or three times.
In many cases, this is a simple mis-configuration of a Windows registry key related to auto-caching proxy auto-config (PAC) file.
To resolve this issue, disable automatic proxy caching in the registry file or group policy settings. For more information, on the Internet, go to the following URL: