Unexpected token '>' and Unexpected token 'in'

[Dexon95]

Hey, i'm having some trouble figuring out this problem. I'm not sure if this comes from this module or phantomjs.

These warnings are returned from little scripts on my test page
Unexpected token '>' :

function x(y, z){
  z(y);
}
x('Hey', cb => {
  console.log(cb);
});

Unexpected token 'in' :

var a = {"one": 1, "two": 2, "three": 3};
for(let i in a){
  console.log(a[i]);
}

[SamVerschueren]

Phantom does not work with ES6 features. Same like older browsers.