Success or Error message not appear

• Type: Bug
• Status: Closed
• Resolution: Won't Fix
• Affects Version/s: Master
• Fix Version/s: None
• Component/s: Headless Delivery API
• Labels: None
• Fix Priority: 3

Step-by-Step:

1. Go to Liferay and login
2. Go to the http://localhost:8080/o/api
3. Add/Edit/Update some header

Actual result:
No success or error message appears

Expected:
Some success or error message appears

Environment: localhost
Github: https://github.com/liferay/liferay-portal.git
Branch: master
Bundle: Liferay CE
Database: MySQL 5.7.22
Last Commit: 5b2bf57d5791a69dcaa119cd16983b35bdb96037