There appears to be a lingering bug in FC versions 3.5.0+ that was causing an error when adding an event source. Previously, if the event source being added was null, FC just ignored it. With versions 3.5+, an error occurs. This was evidently fixed, but still running into.
There appears to be a lingering bug in FC versions 3.5.0+ that was causing an error when adding an event source. Previously, if the event source being added was
null
, FC just ignored it. With versions 3.5+, an error occurs. This was evidently fixed, but still running into.Tracking issue: https://github.com/fullcalendar/fullcalendar/issues/3845
Added a null check to only add event sources if they aren't null/undefined.