After many years of jrock.us being served over HTTPS, I finally remembered to
enable HTTP Strict Transport Security. There was never any reason not to – all
traffic to any website or app at jrock.us goes through my reverse proxy, and
it’s served with a wildcard *.jrock.us certficiate. If it doesn’t go through
my reverse proxy, that’s a bug, and should be fixed.
Several days after making this change, I closed my GMail tab, and typed
mail.jrock.us to get it back. Chrome responded with “Connection closed”.
Google must be down! But that seems pretty unlikely, so I tried it in curl: