We\'ve set up a Jenkins CI server running Karma targeting PhantomJS. We\'re running our tests through Grunt. Jenkins, Grunt, and Phantom are all running correctly, and Karma
In my case adding
transports: ['xhr-polling', 'jsonp-polling']
to karma.conf.js was sufficient. The real problem was a very old version of karma (0.12). Now with 1.4. I don't need CPU consuming polling.
karma.conf.js