title: gtag.js cookie not being set
body: <p>I have put the tracking code with my id on every page of website.
  But upon checking for cookies, I can see no cookie is being set by gtag.js.
  According to <a href="https://developers.google.com/analytics/devguides/collection/gtagjs/cookies-user-id" rel="nofollow noreferrer">https://developers.google.com/analytics/devguides/collection/gtagjs/cookies-user-id</a> , the js code should automatically set the cookie.</p>
  
  <p>P.S.- I am using Google Analytics for the first time. Total Noob.</p>
  
  <p>Any ideas?</p>