title: Tab specific cookies without using sessionStorage or any HTML5 features
body: <p>I am interested in having users be able to login and logout with multiple user session cookies on my web app. Currently, authentication is done standard and a unique identifier allows me to authenticate a user when they visit our site back if they present an auth token that's available in their cookie. Typical use cases apply in that if the user logs out from one tab, it logs them out of another tab. Right now it requires having the user login from two unique browser instances in order to be able to login to two different accounts. </p>
  
  <p>Is there a non-HTML5 way (using standard javascript cookies) to have tab-specific cookie identifiers? I'm assuming that there is no clear cut way of going about this and it would require some kind of hack + cooperation from the backend. If there is a solution that makes sense without using HTML5, that would be ideal.</p>