{"action":"opened","issue":{"url":"https://api.github.com/repos/bolt/bolt/issues/4086","labels_url":"https://api.github.com/repos/bolt/bolt/issues/4086/labels{/name}","comments_url":"https://api.github.com/repos/bolt/bolt/issues/4086/comments","events_url":"https://api.github.com/repos/bolt/bolt/issues/4086/events","html_url":"https://github.com/bolt/bolt/issues/4086","id":106147097,"number":4086,"title":"In [2.3] snippetcallbacks in extensions no longer work.","user":{"login":"bobdenotter","id":1833361,"avatar_url":"https://avatars.githubusercontent.com/u/1833361?v=3","gravatar_id":"","url":"https://api.github.com/users/bobdenotter","html_url":"https://github.com/bobdenotter","followers_url":"https://api.github.com/users/bobdenotter/followers","following_url":"https://api.github.com/users/bobdenotter/following{/other_user}","gists_url":"https://api.github.com/users/bobdenotter/gists{/gist_id}","starred_url":"https://api.github.com/users/bobdenotter/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bobdenotter/subscriptions","organizations_url":"https://api.github.com/users/bobdenotter/orgs","repos_url":"https://api.github.com/users/bobdenotter/repos","events_url":"https://api.github.com/users/bobdenotter/events{/privacy}","received_events_url":"https://api.github.com/users/bobdenotter/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-09-12T10:45:30Z","updated_at":"2015-09-12T10:45:30Z","closed_at":null,"body":"In Bolt extensions you can add snippets, like this: \r\n\r\n```\r\n$this->addSnippet(SnippetLocation::END_OF_HEAD, 'headsnippet');\r\n```\r\nIn case of the [Sitemap](https://github.com/bolt/Sitemap) extension, it would use `'headsnippet'` as a callback, to insert a piece of generated HTML into the `<head>` section. \r\n\r\nOn current master, it no longer recognizes it as a callback, and simply outputs the string `'headsnippet'`. Is this a regression in 2.3? "}}