old_contents: module.exports = function(config) {
    config.set({
      browsers: ['PhantomJS2'],
      frameworks: ['jasmine', 'fixture'],
      reporters: ['spec'],
      plugins: [
          'karma-jasmine',
          'karma-fixture',
          'karma-html2js-preprocessor',
          'karma-phantomjs2-launcher',
          'karma-spec-reporter'
      ],
      preprocessors: {
        '**/*.html': ['html2js']
      },
      files: [
          'node_modules/promise-polyfill/Promise.js',
          'src/*.js',
          'test/spec/*',
          {pattern: 'test/fixture/*', included: false, served: true, nocache: false},
      ],
    });
  };
  
new_contents: module.exports = function(config) {
    config.set({
      browsers: ['PhantomJS2'],
      frameworks: ['jasmine', 'fixture'],
      reporters: ['spec'],
      plugins: [
          'karma-jasmine',
          'karma-fixture',
          'karma-html2js-preprocessor',
          'karma-phantomjs2-launcher',
          'karma-spec-reporter'
      ],
      preprocessors: {
        '**/*.html': ['html2js']
      },
      files: [
          'node_modules/promise-polyfill/promise.js',
          'src/*.js',
          'test/spec/*',
          {pattern: 'test/fixture/*', included: false, served: true, nocache: false},
      ],
    });
  };
  
subject: Fix casing of node_modules/promise-polyfill/promise.js