Atlassian Confluence 9.0.2 Server/DC
Seems like all buttons are dead. This exact same Slack integration works fine on Jira Service Management:

Anyone found a workaround? I can notice the issue is Confluence not taking the `data-team-id="XXXXX"` parameter from the creds field, and also the no buttons work at all (even "paste).
I wonder if there's any workaround using the web inspector, but I'm not so savvy on web-dev tools.