Not sure if this is the appropriate place to post this but here goes:
Whilst looking into adding the ability to create a custom monthly recurring event that only appears on the fifth week day of a month, e.g. fifth Sunday of a month, I noticed a JS syntax error in the console.
The problem stemmed from lines 88 and 107. In each of these lines there is an errant ” (double quote):
Line 88 should be: $(‘[name=”recurrence[type]”] option:selected’).val() == “Custom”)
and line 107: $(‘[name=”recurrence[end-type]”] option:selected’).val() == “On”)
Note the removal of the ” after selected.