Steps to reproduce:
- Start bundle with clean database in RedHat 7.
- Stop firewall of RH7 and connect the bundle with another machine's browser.
- Add a DDL Display portlet on the page.
- Click add List.
- Enter a name and select a definition.
- Click Save.
- Go back to the DDL display portlet.
- Click Add record and add a record.
- Click Actions button near the new created record, click Delete.
- Click yes to the pop-up window.
Record delete successfully.
"Error" shows in portlet.