karma.conf.js

module.exports = function (config) {
    var configuration = {
        // configs
        
        browsers: ['Chrome'],
        customLaunchers: {
            Chrome_travis_ci: {
                base: 'Chrome',
                flags: ['--no-sandbox']
            }
        },
      
        // configs
    };

    if (process.env.TRAVIS) {
        configuration.browsers = ['Chrome_travis_ci'];
    }

    config.set(configuration);
}