title: Are HTTP sessions now shared across browsers
body: <p>When developing a PHP site I use Chrome as my primary browser. Typically I am logged in as an admin user. When I need to check out the site as a regular user (but retain access as admin) I open another browser (MS Edge) - I do this because opening the site in a new tab or window retains the session and I can only be one user at a time. Today I was logged in as admin in Chrome. I accessed the site in Edge and was immediately shown the admin page and was logged in as the admin user I was in Chrome. In Edge, I logged out and back in as a regular user. When I went back to Chrome I was now the regular user.</p>
  <p>Are HTTP sessions now shared across browsers?</p>