Sign in no token
Server IP / URL
All APIs used by this page (with the server address)
This page's own domain (iotadmin) is only where admin.html is opened from. ALL API calls and the login go to the server chosen here: the typed IP, else the choice, else DEFAULT_SERVER_URL in the code (Yukkon). Each server has its own Cognito pool, so sign in again after changing to ANOTHER server. IP, domain (HTTP) and domain (HTTPS) of the SAME server are separate choices and keep you signed in. If this page is opened over https:// the browser blocks http:// API choices (mixed content) - use the HTTPS entries then.