Clicking JSON WS invoke button causes browser console error

• Type: Bug
• Status: Closed
• Resolution: No Longer Reproducible
• Affects Version/s: Master
• Fix Version/s: 7.0.X, 7.1.0 Beta 1, Master
• Component/s: Web Services > JSON WS
• Labels:
  • profiq
• Bug Type: Regression Bug

Invoke button in any request causes javascript error in console.
Chrome:

Firefox:

Steps:

1. Run Liferay
2. Login to Liferay
3. Access [Liferay IP]:[Liferay Port]/api/jsonws
4. Choose request fetch-country
5. Set countryId to 18
6. Invoke

Actual result: Javascript error in console, waiting circle invoked

Expected: Result shows correct result

Tested & failed:
Mysql 5.7, Tomcat 8.0.32, CentOS
Firefox, Chrome
master 20180311

Works correctly:
Mysql 5.7, Tomcat 8.0.32, CentOS
Firefox, Chrome
7.0.4 GA 5

Priority: L3 + S3 = 3