This question is in reference to Atlassian Documentation: Application Links Troubleshooting Guide
Two applications, JIRA and Confluence, are running on the same machine and connected one to each other via localhost:8080 and localhost:8090. Application links are configured and seems to work fine: I can search/link Confluence pages in JIRA and insert JIRA reports into Confluence pages. However, linking a project directly to the Confluence space does not enable conversion of plain text ISSUE-123 into the active JIRA issue link.
What gives? Logs are no helpful as there is nothing about this.