When viewing my public careers profile or open the profile in careers for editing I get a mixed content warning in Chrome for the favicon.ico. The warning does not occur when browsing careers.
Mixed Content: The page at 'https://careers.stackoverflow.com/jehof' was loaded over HTTPS, but requested an insecure image 'http://cdn.sstatic.net/stackoverflow/img/favicon.ico'. This content should also be served over HTTPS.