waitForOriginSync, but only if the optimizelyEndUserId cookie doesn't exist yet

waitForOriginSync-optimizelyEndUserId-cookie.js

/**
 * Only use waitForOriginSync if the optimizelyEndUserId cookie is not yet present
 * Use for facilitating cross-domain tracking
 * Implement in Project JavaScript (snippet activation happens after Project JavaScript
 */

var getCookie = function(name) {
  var match = document.cookie.match(name+'=([^;]*)');
  return match ? match[1] : undefined;
};
var optimizelyEndUserId = getCookie('optimizelyEndUserId');
if (!(optimizelyEndUserId !== undefined)) {
  window["optimizely"].push({
      "type": "waitForOriginSync",
      "canonicalOrigins": ["co-operativefuneralcare.co.uk", "funeralaccount.com"]
  });
}