{"action":"closed","issue":{"url":"https://api.github.com/repos/facebook/react/issues/2756","labels_url":"https://api.github.com/repos/facebook/react/issues/2756/labels{/name}","comments_url":"https://api.github.com/repos/facebook/react/issues/2756/comments","events_url":"https://api.github.com/repos/facebook/react/issues/2756/events","html_url":"https://github.com/facebook/react/issues/2756","id":52577613,"number":2756,"title":"Warn if rendering an HTML tag spelled with uppercase letters","user":{"login":"bmcmahen","id":1236841,"avatar_url":"https://avatars.githubusercontent.com/u/1236841?v=3","gravatar_id":"","url":"https://api.github.com/users/bmcmahen","html_url":"https://github.com/bmcmahen","followers_url":"https://api.github.com/users/bmcmahen/followers","following_url":"https://api.github.com/users/bmcmahen/following{/other_user}","gists_url":"https://api.github.com/users/bmcmahen/gists{/gist_id}","starred_url":"https://api.github.com/users/bmcmahen/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bmcmahen/subscriptions","organizations_url":"https://api.github.com/users/bmcmahen/orgs","repos_url":"https://api.github.com/users/bmcmahen/repos","events_url":"https://api.github.com/users/bmcmahen/events{/privacy}","received_events_url":"https://api.github.com/users/bmcmahen/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/facebook/react/labels/good%20first%20bug","name":"good first bug","color":"009800"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":20,"created_at":"2014-12-20T21:47:57Z","updated_at":"2015-06-23T22:04:36Z","closed_at":"2015-06-23T22:04:36Z","body":"If I try running the following code:\r\n\r\n```javascript\r\nvar Hello = React.createClass({\r\n    render: function() {\r\n      return React.createElement('BR', null);\r\n    }\r\n});\r\n \r\nReact.render(<Hello/>, document.body);\r\n```\r\n\r\nI get two `<br>` tags inserted into the dom, instead of one. I made a quick jsfiddle to show this. http://jsfiddle.net/kb3gN/8662/\r\n\r\nI'm running Chrome, if that's at all relevant."}}