Hi, Just taking a look at the LICENSE file.
It contains this: The Google Closure Library Externs For Common Libraries are available under Apache License 2.0. For details see the externs folder. Taking a look at this GCL file: https://github.com/google/closure-library/blob/master/closure/goog/events/event.js I can see that it’s "Copyright 2005 The Closure Library Authors. All Rights Reserved.” In the creates js file I see the standard ASF header and no mention of Google's copyright. Has the copyright been removed? Thanks, Justin