Close button for Kanplan announcement pop up in Agile wallboard gadget doesnt work

Summary

The close button div.ghx-ack-close-button of the Kanplan announcement pop up in Agile Wallboard gadget div.ghx-kanplan-ack-container does not work

Steps to reproduce

1. Add agile wallboard gadget in dashboard
2. Select board filter for Kanban board
3. Save > You'll see a pop up message about kanplan is shown on the top of the gadget
4. Click close button

Expected Result

The pop up message will dissapear

Actual Result

Pop up message remains within the gadget

Note

• Reproducible in Chrome 63.0.3239.132 and Safari
• Not reproducible in Firefox 52.5.3
• Accessing the board directly will not show the same pop up (if the board has Kanplan enabled)