old_contents: 
  // Karma Configuration
  // Copyright (C) 2017 Google Inc.
  // Licensed under http://www.apache.org/licenses/LICENSE-2.0 <see LICENSE file>
  
  module.exports = function (config) {
    var configuration = {
  
      // base path that will be used to resolve all patterns (eg. files, exclude)
      basePath: '',
  
      // frameworks to use
      // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
      frameworks: ['jasmine'],
  
      // list of files / patterns to load in the browser
      files: [
        'src/ggrc/assets/js_specs/spec_setup.js',
        'src/ggrc/static/dashboard-templates.js',
        'src/ggrc/static/dashboard.js',
        'src/ggrc/static/dashboard-spec-helpers.js',
        'src/**/*_spec.js'
      ],
  
      // list of files to exclude
      exclude: [
      ],
  
      // preprocess matching files before serving them to the browser
      // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
      preprocessors: {
      },
  
      // test results reporter to use
      // possible values: 'dots', 'progress'
      // available reporters: https://npmjs.org/browse/keyword/karma-reporter
      reporters: ['progress'],
  
      junitReporter: {
        outputDir: 'test',
        useBrowserName: false
      },
  
      // web server port
      port: 9876,
  
      // enable / disable colors in the output (reporters and logs)
      colors: true,
  
      // level of logging
      // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
      logLevel: config.LOG_INFO,
  
      // enable / disable watching file and executing tests whenever any file changes
      autoWatch: true,
  
      // start these browsers
      // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
      browsers: [/* 'PhantomJS' */],
  
      customLaunchers: {
        Chrome_travis_ci: {
          base: 'Chrome',
          flags: ['--no-sandbox']
        }
      },
  
      // Continuous Integration mode
      // if true, Karma captures browsers, runs the tests and exits
      singleRun: false
    };
  
    if (process.env.TRAVIS) {
      configuration.browsers = ['Chrome_travis_ci'];
    }
  
    config.set(configuration);
  };
  
new_contents: 
  // Karma Configuration
  // Copyright (C) 2017 Google Inc.
  // Licensed under http://www.apache.org/licenses/LICENSE-2.0 <see LICENSE file>
  
  module.exports = function (config) {
    var configuration = {
  
      // base path that will be used to resolve all patterns (eg. files, exclude)
      basePath: '',
  
      // frameworks to use
      // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
      frameworks: ['jasmine'],
  
      // list of files / patterns to load in the browser
      files: [
        'src/ggrc/assets/js_specs/spec_setup.js',
        'src/ggrc/static/dashboard-templates.js',
        'src/ggrc/static/dashboard.js',
        'src/ggrc/static/dashboard-spec-helpers.js',
        'src/**/*_spec.js'
      ],
  
      // list of files to exclude
      exclude: [
      ],
  
      // preprocess matching files before serving them to the browser
      // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
      preprocessors: {
      },
  
      // test results reporter to use
      // possible values: 'dots', 'progress'
      // available reporters: https://npmjs.org/browse/keyword/karma-reporter
      reporters: ['progress'],
  
      junitReporter: {
        outputDir: 'test',
        useBrowserName: false
      },
  
      // web server port
      port: 9876,
  
      // enable / disable colors in the output (reporters and logs)
      colors: true,
  
      // level of logging
      // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
      logLevel: config.LOG_INFO,
  
      // enable / disable watching file and executing tests whenever any file changes
      autoWatch: true,
  
      // start these browsers
      // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
  
      customLaunchers: {
        Chrome_travis_ci: {
          base: 'Chrome',
          flags: ['--no-sandbox']
        }
      },
      browsers: ['PhantomJS'],
      concurrency: 1,
  
      // Continuous Integration mode
      // if true, Karma captures browsers, runs the tests and exits
      singleRun: false
    };
  
    if (process.env.TRAVIS) {
      configuration.browsers = ['Chrome_travis_ci'];
    }
  
    config.set(configuration);
  };
  
subject: Enable phantomjs in karma.conf.js