Travis workaround

karma.conf.js

 // Karma configuration
 // Generated on Mon Apr 20 2015 06:33:20 GMT-0700 (PDT)
 
 module.exports = function(config) {
-  config.set({
+  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: ['mocha', 'requirejs', 'chai'],
 
     // list of files / patterns to load in the browser
     files: [
@@ skipping 27 matching lines @@
     reporters: ['progress'],
 
     // 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,
+    logLevel: config.LOG_DEBUG,
 
     // enable / disable watching file and executing tests whenever any file changes
     autoWatch: false,
 
     // start these browsers
     // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
 
     // FIXME(vsm): Once harmony is on by default, we can simply add the following:
     //   browsers: ['Chrome'],
     // and remove the custom launchers.
@@ skipping 11 matching lines @@
       chrome_travis: {
         base: 'Chrome',
         flags: ['--no-sandbox --js-flags="--harmony-arrow-functions --harmony-classes --harmony-computed-property-names"']
       },
     },
     browsers: ['chrome_harmony'],
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
     singleRun: false,
-  });
+  };
+
+  if (process.env.TRAVIS) {
+    configuration.browsers = ['chrome_travis'];
+  }
+
+  config.set(configuration);
 };