I'm working on a branding project and I'm unable to get a favicon to display on an internal SSL Sharepoint 2013 site.
If I access the site via http://servername:xxxx the favicon displays fine so I know my code in the masterpage is correct. However, when I access the site via its host name with the SSL, https://groups.contoso.corps it does not work. To make it more frustrating, it does work in Chrome and Firefox using the SSL link, just not in IE9-11 which is where I need it to work because that is our company's supported browser.
Is there something I'm missing or is there a specific reason IE won't show the favicon on this SSL site? I'd appreciate any suggestions.