Thanks for letting me know about Calomel, it looks like a very handy plugin! I tracked down the issue (a missing CSS file 302 redirecting to a non-HTTPS page) and it should show the site as being secure now :)
Looks tiptop on my end, too! Calomel is pretty cool. There may be a similar plugin getting released out of UCSC in the next year or two, but that's only if the research team gets their shit together. ;)
