I remember suggesting it to someone else at my previous employer and there were issues. It may have been Outlook[1] though. I can't recall off-hand. [1] http:/

I remember suggesting it to someone else at my previous employer and there were issues. It may have been Outlook[1] though. I can't recall off-hand. [1] http://stackoverflow.com/questions/4303633/preventing-secure-insecure-errors-by-using-protocol-relative-urls-for-image-sour http://stackoverflow.com/questions/4303633/preventing-secure...