code: function configureLocalBrowsers (config) {
    var isMac = /^darwin/.test(process.platform);
    var isWindows = /^win/.test(process.platform);
    var isLinux = !isMac && !isWindows;
  
    if (isMac) {
      config.browsers = ['Firefox', 'Chrome', 'Safari'];
    }
    else if (isLinux) {
      config.browsers = ['Firefox', 'ChromeHeadless'];
    }
    else if (isWindows) {
      config.browsers = ['Firefox', 'Chrome', 'IE9', 'IE10', 'IE'];
  
      // NOTE: IE 6, 7, 8 are not supported by Chai
      config.customLaunchers = {
        IE9: {
          base: 'IE',
          'x-ua-compatible': 'IE=EmulateIE9'
        },
        IE10: {
          base: 'IE',
          'x-ua-compatible': 'IE=EmulateIE10'
        }
      };
    }
  }
docs: Configures the browsers for the current platform