Hi @samice ,
I tracked this down. For the master (development) versions of our software, we upgraded JQuery/JQueryUI on this bug entry:
https://pkp.sfu.ca/bugzilla/show_bug.cgi?id=8707
There’s a lot of stuff there, and it might not be apparent how to apply it to the stable release, but I think there are really only one or two changes that you’ll need. Try in particular this change:
Regards,
Alec Smecher
Public Knowledge Project Team