CM7:8-optimizely-gtm-google-analytics-cd-integration.js

function() {

    if (window.optimizely) {

        var o = optimizely;

        if (o.activeExperiments && o.allExperiments) {

            for (var i = 0; i < o.activeExperiments.length; i++) {

                var experimentId = o.activeExperiments[i];

                var experiment = o.allExperiments[experimentId];

                if (experiment && experiment.universal_analytics) {

                    var slot = experiment.universal_analytics.slot;

                    if (slot == 3) { // you would fill this in with the slot you are using in Optimizely for this experiment.

                        if (o.variationIdsMap && o.variationNamesMap) {

                            return experimentId + ': ' + o.variationNamesMap[experimentId];

                        }

                    }

                }

            }

        }

    }

    return undefined;

}