title: Preventing automatic sign-in when using Google+ Sign-In
body: <p>I am in the process of integrating Google+ sign in with my site, which also lets users sign in with Twitter and Facebook. The sign in page of the site therefore has 3 buttons, one for each of the services.</p>
  
  <p>The issue I am having is in the following scenario:</p>
  
  <ul>
  <li>user goes to the sign in page</li>
  <li>user signs in successfully with G+</li>
  <li>user signs out of my site (but the account is still associated with G+, signing out of the site does not disconnect the G+ account)</li>
  <li>user visits the sign in page again</li>
  <li>at this stage the Sign in with G+ button is rendered and automatically signs the user into the account associated with G+ without the user having to click the button</li>
  </ul>
  
  <p>The problem is that on revisiting the sign in page, I want the user to have the option of signing in with another service, rather than automatically being signed in with G+. If the user wants to sign in with G+ then they can do so by clicking the button - the user will then be signed in automatically.</p>
  
  <p>Is it possible to prevent this automatic sign in on button render? I can simulate it by using the <code>data-approvalprompt="force"</code> as an attribute on the button, but I don't think this is an ideal solution (the user then has to go through the confirmation process, which I would ideally would like to prevent)</p>