Usually, when something works on every machine, except windows (or vice versa), this is due to path problems. I see that you are using the unix path in a variable
events: "/ roster / manage / ajax? part = shiftcalendar & nodeID =" + placeid
Perhaps try using the Windows style style "\ roster \ manage \ ajax? Part = shiftcalendar & nodeID =" + placeid
This is a rough assumption. This is what catches the eye at first glance.
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