What exactly is not working? Did you create a custom Issue Collector in your Jira installation aswell?
Please provide some more information. I've tested the widget myself, and everything is working as expected here.
Is is possible to pass the value through microflow constant instead of hardcoded value in url text field?
This allow us to configure different url's based on environment(SIT/UAT/PROD)
Is it possible to append the username to reporter field while submitting the feedback via mendix?
Option to make name and email field mandatory in feedback template?