Karma is reporting everything twice

If I run my karma tests like this in node then the ‘dots’ reporter is outputting everything twice

var KarmaServer = require('karma').Server;
var karmaRunner = require('karma').runner;

var karmaConfig = {
    basePath: '',
    autoWatch: false,
    frameworks: ['jasmine'],
    reporters: ['dots'],
    files: [].concat(
        tasks['vendorJs'].getOutput(),
        'node_modules/angular-mocks/angular-mocks.js',
        'node_modules/ng-describe/dist/ng-describe.js',
        tasks['ts'].getOutput(),
        tasks['templates'].getOutput(),
        'Tests/Client/**/*.spec.js'
    ),
    browsers: ['PhantomJS']
};

var karmaServer = new KarmaServer(karmaConfig);
karmaServer.start();

karmaServer.on('browser_register', function (browser) {
    karmaRunner.run(karmaConfig);
})

This will output the following

05 02 2016 13:31:08.353:INFO [karma]: Karma v0.13.19 server started at http://localhost:9876/
05 02 2016 13:31:08.361:INFO [launcher]: Starting browser PhantomJS
05 02 2016 13:31:09.840:INFO [PhantomJS 2.1.1 (Windows 8 0.0.0)]: Connected on socket /#1rTJlVKpIc8bFuWGAAAA with id 17442726
.....
PhantomJS 2.1.1 (Windows 8 0.0.0): Executed 5 of 5 SUCCESS (0.003 secs / 0.066 secs)
.....
PhantomJS 2.1.1 (Windows 8 0.0.0): Executed 5 of 5 SUCCESS (0.003 secs / 0.066 secs)

My tests aren’t actually being run twice but if I log something from a test it will show up twice in the output.

Any idea why this is happening?

Let me know if including my package.json or DEBUG output would be useful

[tcschiller]

I had similar issues when trying to get a prettifier working - I’d get in my terminal both raw console output and the prettified output.

But, I was able to find a karma.conf setting that stopped the raw console output, returning only the prettified output.

karma.conf has a property called client, which is an object with several properties of its own. The one relevant here is captureConsole. This defaults to true, which means any console logging in the browser is sent back to your bash, too. Setting it to false solved my duplicate output issues. I wonder if making that change would help with this?

    client: {
        captureConsole: false
    }

[robianmcd]

I still see the issue when I run the tests with chrome.