{"action":"created","issue":{"url":"https://api.github.com/repos/elm-lang/elm-reactor/issues/59","labels_url":"https://api.github.com/repos/elm-lang/elm-reactor/issues/59/labels{/name}","comments_url":"https://api.github.com/repos/elm-lang/elm-reactor/issues/59/comments","events_url":"https://api.github.com/repos/elm-lang/elm-reactor/issues/59/events","html_url":"https://github.com/elm-lang/elm-reactor/issues/59","id":51951403,"number":59,"title":"Blank screen - internal server error resulted in undefined being called","user":{"login":"HappyBros","id":8340533,"avatar_url":"https://avatars.githubusercontent.com/u/8340533?v=3","gravatar_id":"","url":"https://api.github.com/users/HappyBros","html_url":"https://github.com/HappyBros","followers_url":"https://api.github.com/users/HappyBros/followers","following_url":"https://api.github.com/users/HappyBros/following{/other_user}","gists_url":"https://api.github.com/users/HappyBros/gists{/gist_id}","starred_url":"https://api.github.com/users/HappyBros/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/HappyBros/subscriptions","organizations_url":"https://api.github.com/users/HappyBros/orgs","repos_url":"https://api.github.com/users/HappyBros/repos","events_url":"https://api.github.com/users/HappyBros/events{/privacy}","received_events_url":"https://api.github.com/users/HappyBros/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2014-12-15T05:53:34Z","updated_at":"2015-01-09T15:07:19Z","closed_at":"2015-01-09T15:07:19Z","body":"I tried to debug this mouse tracker code:\r\n\r\n    import Graphics.Element as Element\r\n    import Graphics.Collage as Collage\r\n    import Signal as Signal\r\n    import Color as Color\r\n    import Text\r\n    import Mouse as Mouse\r\n    \r\n    \r\n    makeScene : Float -> Collage.Form\r\n    makeScene sideLength = Collage.outlined (Collage.solid Color.black) (Collage.square sideLength)\r\n    \r\n    renderScene : Collage.Form -> (Int, Int) -> Element.Element\r\n    renderScene scene (x, y) = Collage.collage (x*2) (y*2) [scene]\r\n    \r\n    main : Signal.Signal Element.Element\r\n    main = Signal.map (renderScene <| makeScene 10.0) Mouse.position\r\n\r\nIt worked when run stand-alone. However, while debugging, I got a blank screen on Chrome. As suggested [here](https://github.com/elm-lang/elm-reactor/issues/58), I opened the Developer Console to get the error, and I saw the following:\r\n```\r\n(X) [http://localhost:8000/debugging-runtime.js] Failed to load resource: the server responded with a status of 500 (Internal Server Error)\r\n(X) [debugger.js:11900] Uncaught TypeError: undefined is not a function\r\n```\r\nI assume this is a bug within debugging-runtime.js that caused debugger.js to call `undefined`. And if it helps, I installed Elm Platform 0.14."},"comment":{"url":"https://api.github.com/repos/elm-lang/elm-reactor/issues/comments/69345738","html_url":"https://github.com/elm-lang/elm-reactor/issues/59#issuecomment-69345738","issue_url":"https://api.github.com/repos/elm-lang/elm-reactor/issues/59","id":69345738,"user":{"login":"evancz","id":1658058,"avatar_url":"https://avatars.githubusercontent.com/u/1658058?v=3","gravatar_id":"","url":"https://api.github.com/users/evancz","html_url":"https://github.com/evancz","followers_url":"https://api.github.com/users/evancz/followers","following_url":"https://api.github.com/users/evancz/following{/other_user}","gists_url":"https://api.github.com/users/evancz/gists{/gist_id}","starred_url":"https://api.github.com/users/evancz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/evancz/subscriptions","organizations_url":"https://api.github.com/users/evancz/orgs","repos_url":"https://api.github.com/users/evancz/repos","events_url":"https://api.github.com/users/evancz/events{/privacy}","received_events_url":"https://api.github.com/users/evancz/received_events","type":"User","site_admin":false},"created_at":"2015-01-09T15:07:19Z","updated_at":"2015-01-09T15:07:19Z","body":"I'm going to close as of the release of 0.14.1"}}