Saw this problem under 3.22 (but could probably have been master too): Circulation page lists a number of checkouts. But clicking Show checkouts does not list them in the table. What happened? This javascript error occurred: Sunday not defined. Comes from includes/calendar.inc. And should be a zero. (As value for the preference CalendarFirstDayOfWeek.) After toggling this preference a few times, I could not reproduce the problem anymore under 3.22 (Plack+memcache). Probably a cache problem somehow. Note that dbrev 3.21.00.015 moved the old value of Sunday to 0. Just leaving this note here some time for future troubleshooting.
We are seeing a similar problem with 16.05+. It is very apparent when using Chrome but doesn't manifest using Firefox. We also noticed the Javascript error. I haven't investigated further yet but this is happening on more than one site.
(In reply to Marcel de Rooy from comment #0) > This javascript error occurred: Sunday not defined. I can reproduce this error in Firefox if I manually update the CalendarFirstDayOfWeek preference with the value "Sunday." Could it be a data problem from an upgrade?
(In reply to Owen Leonard from comment #2) > (In reply to Marcel de Rooy from comment #0) > > > This javascript error occurred: Sunday not defined. > > I can reproduce this error in Firefox if I manually update the > CalendarFirstDayOfWeek preference with the value "Sunday." Could it be a > data problem from an upgrade? Might have been a syspref caching problem too.