Sebastian McKenzie (2015-04-11T02:01:08.000Z)
d at domenic.me (2015-04-19T23:38:09.021Z)
Babel is a terrible reference implementation for subclassing since it relies on the engine. See the docs http://babeljs.io/docs/usage/caveats/#classes and https://github.com/babel/babel/issues/1172 for more info. This exact question (super in derived class constructors) was also indirectly bought up recently in this issue: https://github.com/babel/babel/issues/1131