title: How to authenticate user with google on page load whitout login button?
body: <p>I'm working on a project where I need to include Google authentication, but my superior would like to have it in a different way, when the page loads, it checks if the user is Logged In into Google, and if it is then gets the users email address. </p>
  
  <p>My question is that is it possible to send an authorization request on page load to Google, and authenticate the user without the user have to click on any button?</p>