{"action":"opened","issue":{"url":"https://api.github.com/repos/Automattic/facebook-instant-articles-wp/issues/84","repository_url":"https://api.github.com/repos/Automattic/facebook-instant-articles-wp","labels_url":"https://api.github.com/repos/Automattic/facebook-instant-articles-wp/issues/84/labels{/name}","comments_url":"https://api.github.com/repos/Automattic/facebook-instant-articles-wp/issues/84/comments","events_url":"https://api.github.com/repos/Automattic/facebook-instant-articles-wp/issues/84/events","html_url":"https://github.com/Automattic/facebook-instant-articles-wp/issues/84","id":146061609,"number":84,"title":"Can't Define INSTANT_ARTICLES_SLUG Constant","user":{"login":"donaldG","id":901161,"avatar_url":"https://avatars.githubusercontent.com/u/901161?v=3","gravatar_id":"","url":"https://api.github.com/users/donaldG","html_url":"https://github.com/donaldG","followers_url":"https://api.github.com/users/donaldG/followers","following_url":"https://api.github.com/users/donaldG/following{/other_user}","gists_url":"https://api.github.com/users/donaldG/gists{/gist_id}","starred_url":"https://api.github.com/users/donaldG/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/donaldG/subscriptions","organizations_url":"https://api.github.com/users/donaldG/orgs","repos_url":"https://api.github.com/users/donaldG/repos","events_url":"https://api.github.com/users/donaldG/events{/privacy}","received_events_url":"https://api.github.com/users/donaldG/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-04-05T17:53:48Z","updated_at":"2016-04-05T17:53:48Z","closed_at":null,"body":"I've tried doing it in the theme, in a plugin, with an init action, with mu_plugins_loaded action in theme (as it fires before plugins loaded) but I just cannot change this unless I do it inside the plugin itself. I've flushed the permalinks but nothing seems to work. I made sure to add a post to the category I'm hoping to use. Any ideas here?\r\n\r\nI just tried defining the constant in a plugin, deactivating Instant Articles plugin, flushing permalinks, then reactivating Instant Articles and my user defined constant still didn't stick. Am I just being dense and missing something basic?\r\n\r\nThis should be all that's needed, right?\r\n`define( 'INSTANT_ARTICLES_SLUG', 'category/fb-instant-articles/feed/' );`\r\n"}}