Double alert notification is shown adding/deleting pages if SPA is working

• Type: Regression Bug
• Status: Closed
• Resolution: No Longer Reproducible
• Affects Version/s: 7.0.X
• Fix Version/s: 7.0.X
• Component/s: WCM
• Labels:
  • QA-V
  • ee-7.0.x-only
  • ee-ts
• Fix Priority: 3

If SPA is working, notification bar is shown duplicated when adding / deleting pages.

Steps to reproduce

1. Start Liferay
2. Add a new page / or delete an existing one (assert SPA is working)

Expected behavior
Notification bar is shown saying something like "The page was created/deleted successfully"

Actual behavior
Notificatin bar is shown twice (see attached screenshot)

Additional notes
Before LPS-83481, SPA is not working in 7.0.x for action URLs so this case is not happening. After submitting those changes this case is revealed.