title: Alternative page title and meta data on login
body: <p>I would like to know how to display alternative 'title' and other metadata on the login page.</p>
  
  <p>Say I have a target URL say, <a href="https://example.com/thing/12345" rel="nofollow noreferrer">https://example.com/thing/12345</a> ... if not logged in the user gets redirected to the login page, fine that's what I want, but on the login page I would like to inject the title, and maybe other metadata from the target page.</p>
  
  <p>So that if a link such as above is shared in say Facebook, it will display the title/meta of the target URL and not the login URL.</p>