Jira Development Panel not pulling repos

Summary

When integrating GitLab with Jira Development Panel, Jira is not populating with repository data. Even when we see the 200 response from GitLab.

Steps to reproduce

1. Set up the integration according to the documentation
2. Data is not populated. Waited for 60 minutes, also tried refreshing from the Jira side.

What is the current bug behavior?

Jira does not pull GitLab repositories.

What is the expected correct behavior?

Jira should populate with GitLab data.

Relevant logs and/or screenshots

From /var/log/gitlab/gitlab-rails/api_json.log:
{"time":"2018-08-30T14:56:00.889Z","severity":"INFO","duration":14.99,"db":2.99,"view":12.0,"status":200,"method":"GET","path":"/api/v3/orgs/test/repos","params":{"per_page":"100","page":"1"},"host":"git.satanic.cloud","ip":"23.227.161.215","ua":"JIRA DVCS Connector/4.3.1","user_id":1,"username":"jcolyer","queue_duration":9.34}
{"time":"2018-08-30T14:56:00.975Z","severity":"INFO","duration":70.68,"db":9.67,"view":61.010000000000005,"status":200,"method":"GET","path":"/api/v3/users/test/repos","params":{"per_page":"100","page":"1"},"host":"git.satanic.cloud","ip":"23.227.161.215","ua":"JIRA DVCS Connector/4.3.1","user_id":1,"username":"jcolyer","queue_duration":7.0}
{"time":"2018-08-30T14:56:00.991Z","severity":"INFO","duration":4.67,"db":0.96,"view":3.71,"status":200,"method":"GET","path":"/api/v3/user/repos","params":{"per_page":"100","page":"1"},"host":"git.satanic.cloud","ip":"23.227.161.215","ua":"JIRA DVCS Connector/4.3.1","user_id":1,"username":"jcolyer","queue_duration":9.31}

Links

Customer ticket: https://gitlab.zendesk.com/agent/tickets/102808 (internal use)

/cc @victorwu

Relates to https://gitlab.com/gitlab-org/gitlab-ee/issues/3666