What is jira-dev.com? Is this simple a domain used by Atlassian to verify that addons are working? I thought the only valid customer domains are jira.com and atlassian.net, but jira-dev.com is in the white listed domains in atlassian-connect-express.
The jira-dev.com domain is reserved for internal Atlassian usage. We use it for dogfooding sites for Atlassian Cloud, which is why you can see it whitelisted.
We got our list of valid domains from Atlassian Cloud IP ranges and domains, which does not mention jira-dev.com; should it?
No. jira-dev.com is only accessible from within Atlassian’s internal network.