message: That's not a callback...
diff: @@ -64,7 +64,7 @@ module.exports = function(wct, pluginOptions) {
  });
  wct.on('browser-end', function(def, error, stats, sessionId) {
  - if (eachCapabilities.length === 0 || !sessionId) return done();
  + if (eachCapabilities.length === 0 || !sessionId) return;
  var payload = {
  passed: (stats.status === 'complete' && stats.failing === 0),
  