--- a/playground/codemirror.jsonld.js	Tue Oct 22 14:08:34 2013 -0400
+++ b/playground/codemirror.jsonld.js	Tue Oct 22 14:12:30 2013 -0400
@@ -1,3 +1,28 @@
+/*
+  Copied from
+  https://github.com/marijnh/CodeMirror/blob/8214c1fa2c9dc34dbae56958f3a21555cb092b48/mode/javascript/javascript.js
+
+  Copyright (C) 2013 by Marijn Haverbeke <marijnh@gmail.com> and others
+  
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+  
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+  
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+ */
+
 // TODO actually recognize syntax of TypeScript constructs
 
 CodeMirror.defineMode("javascript", function(config, parserConfig) {