Looking at the IE Developer Console and Chrome Java Console we see 4 errors:
1) DOM7011: The code on this page disabled back+forward caching. Dashboard.jspa
2) SCRIPT5009: Calendar is undefined jira.webresources:calendar-en.js (15,1)
3) SCRIPT5022: No jira/moment batch.js (25,977)
4) Depreicated JS: Dropdown constructor has been deprecated. Use dropdown2 instead
We see these errors when Dashboard gadgets are added or have been removed. We really do not know java or how to use the console to resolve these.
Any help would be appreciated.