The issue preview is not working properly in the Slack room

Summary

The issue preview is not working properly in the Slack room.

Steps to Reproduce

1. Have a Jira-Slack integration properly set up
2. Paste one issue URL or key in the Slack room

Expected Results

Once you paste the URL or just the issue key in the Slack room, the issue preview should be rendered:

Actual Results

The preview does not work.

Notes

The issue preview works when you use the command /jira KEY-123

Workaround

None