I usually try to hit neverssl.com when I see an HSTS error.
I don't see anything on our front end that should be triggering this.
For last-seen times within the last week we show the MMM DD, HH:MM TZ; older times from this year show MMM DD, and from earlier years show MMM DD, YYYY.
For last-seen times within the last week we show the MMM DD, HH:MM TZ; older times from this year show MMM DD, and from earlier years show MMM DD, YYYY.