[AngularJS] Protractor + Mocha + ES6

Hi, I'm trying to setup Protractor to run Mocha tests using ES6. To achieve this I'm using mocha-traceur as a compiler that will transpile the tests on the fly before running them.

If I use npm to run "mocha --compilers js:mocha-traceur" the tests run fine but once I try to configure protractor to use the same compilers argument if fails. 

My protractor-conf.js is something like this

{

     

    specs: ['src/**/*.js' ],

    framework: 'mocha',

    mochaOptions:{

       reporter:'spec',

       compilers: 'js:mocha-traceur path/to/tests/'

    }

}

I've also tried running 

{

    specs: ['src/**/*.js' ],    

    framework: 'mocha',

    mochaOptions:{

       reporter:'spec',

       compilers: 'js:mocha-traceur'

    }

}

since specs are already defined but no luck.

So my question is, is there any way to run any ES6 tests with protractor, whenever it's jasmine/mocha/cucumber ?