title: How are YouTube and Google accessing each others cookies?
body: <p>A lot of researching on stackoverflow told me that getting/setting cookies from other domains isn't possible.</p>
  
  <p>but I can see youtube.com is doing that with google.com
  <img src="https://i.stack.imgur.com/KkxX2.png" alt="enter image description here"></p>
  
  <p>How are they doing that then?</p>