Libraries loaded multiple times

[srtonz]

I noticed that the config below (for v1.7) causes bootstrap.min.js to be requestes from both CDNs. Not sure if I'm making a mistake or not?

jquery.min.js 200 ajax.googleapis.com script fallback.min.js:8 29.3 KB 58 ms
bootstrap.min.js 200 cdnjs.cloudflare.com script fallback.min.js:8 10.0 KB 67 ms
bootstrap.min.js 200 maxcdn.bootstrapcdn.com script fallback.min.js:8 12.0 KB 321 ms

fallback.load(
  {
    'jQuery': [
       '//ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js',
       '//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js'
    ],
    'bootstrap': [
       '//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js',
       '//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js',
    ],
  },
  {
    shim: {
      'bootstrap': ['jQuery']
    }
  }
);

[srtonz]

it seems the reason is that fallback checks for a window object named 'bootstrap' which isn't defined by bootstrap.min.js