The directions example is broken

The path is not being rendered. There's also an error in the console:

Uncaught TypeError: a.hasOwnProperty is not a function
    Pd js:180
    Qd js:179
    gAa directions.js:48
    WJ directions.js:44
    XJ directions.js:44
    eAa directions.js:46
    bAa directions.js:44
    lb js:144
    bAa directions.js:43
    Ba directions.js:43
    js js:440
    setTimeout handler*_.Ei js:264
    start js:440
    Gi js:265
    dragResult_changed directions.js:135
    vf js:202
    bindTo js:388
    aB directions.js:140
    changed js:407
    promise callback*sg.prototype.changed js:407
    vf js:202
    set js:387
    Xf js:210
    Ember 2
    getValue validator.js:749
    Ember 2
    _trigger backburner.js:1123
    _end backburner.js:1018
    end backburner.js:729
    _run backburner.js:1054
    _join backburner.js:1028
    join backburner.js:779
    Ember 2
    Qea js:328
    Rea js:327
    promise callback*Rea js:327
    Load js:14
    <anonymous> js:487
    <anonymous> js:487
js:180:227

sandydoo / ember-google-maps

The directions example is broken #174