{"action":"opened","issue":{"url":"https://api.github.com/repos/mesosphere/marathon-lb/issues/55","repository_url":"https://api.github.com/repos/mesosphere/marathon-lb","labels_url":"https://api.github.com/repos/mesosphere/marathon-lb/issues/55/labels{/name}","comments_url":"https://api.github.com/repos/mesosphere/marathon-lb/issues/55/comments","events_url":"https://api.github.com/repos/mesosphere/marathon-lb/issues/55/events","html_url":"https://github.com/mesosphere/marathon-lb/issues/55","id":131516688,"number":55,"title":"Support adding a custom header of the backend to the response","user":{"login":"SEJeff","id":4603,"avatar_url":"https://avatars.githubusercontent.com/u/4603?v=3","gravatar_id":"","url":"https://api.github.com/users/SEJeff","html_url":"https://github.com/SEJeff","followers_url":"https://api.github.com/users/SEJeff/followers","following_url":"https://api.github.com/users/SEJeff/following{/other_user}","gists_url":"https://api.github.com/users/SEJeff/gists{/gist_id}","starred_url":"https://api.github.com/users/SEJeff/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/SEJeff/subscriptions","organizations_url":"https://api.github.com/users/SEJeff/orgs","repos_url":"https://api.github.com/users/SEJeff/repos","events_url":"https://api.github.com/users/SEJeff/events{/privacy}","received_events_url":"https://api.github.com/users/SEJeff/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-02-05T00:27:40Z","updated_at":"2016-02-05T00:27:40Z","closed_at":null,"body":"ie:\r\n\r\n`X-haproxy-backend: hostname.of.mesos.agent:port_of_app`\r\n\r\nThis would ideally be a global flag for marathon-lb, and would ease troubleshooting in certain instances for http applications. If you like the idea, let me know and I can likely come up with a patch to enable it (disabled by default)."}}