title: SubDomain's cookie in asp.net Core Identity
body: <p>Share and use Identity cookie between domain and sub-domain asp.net core 2.2 and entity framework core 2.6
  I found bet solution this link <a href="https://stackoverflow.com/questions/44227873/multiple-subdomains-cookie-in-asp-net-core-identity?rq=1">Multiple &amp; SubDomain&#39;s cookie in asp.net Core Identity</a></p>
  <p>but I do't found Cookies property in IdentityOption</p>
  <pre><code>options.Cookies.ApplicationCookie.CookieManager = new CookieManager();
  </code></pre>
  <p>Any ideas?</p>