Agile gadget doesn't work when added in confluence 3.1

Steps:
1. Login to QA-EAC. Agile gadget is installed there.
2. Create a new page and click on insert/edit macro link. Try to add "agile" gadget from "All" or "External Content" left tab.
3. In the same dialog user get a UI to configure gadget.
4. Try to select a project and save it

Result:
1. Nothing happens, the progress bar keep on going.
2. Try to "login&approve" the gadget, it take you to qa-jac and user click "approve access".
3. Back in confluence, now user can't see any project/filter in agile gadget.

Expected:
1. The gadget should work without any error message.

Add Info:
1. The gadget works fine in JIRA.