Optimizely - Remove Listener

Optimizely_RemoveListener.js

var token = Number(new Date());
window["optimizely"] = window["optimizely"] || [];
window["optimizely"].push({
  type: "addListener",
  filter: {
    type: "lifecycle",
    name: "pageDeactivated"
  },
  token: token,
  // Add the pageActivated function as a handler.
  handler: function(data) {
    //remove the listener
    window["optimizely"].push({type: 'removeListener', token: token});
  }
});