title: Flask sessions, where are the cookies stored?
body: <p>I'm learning flask and want to understand how sessions work. 
  Apparently the server stores a signed cookie on the client browser. 
  I have done this process using </p>
  
  <pre><code>sessions['mycookie'] = 'mycookievalue'
  </code></pre>
  
  <p>But I'm unable to find the cookie on the browser. I normally list cookies on the browser using chrome developer tools and running the command:</p>
  
  <pre><code>document.cookie
  </code></pre>
  
  <p>This works when I set a cookie but nothing comes up when I set it through sessions. </p>