Preventing multiple browser sessions on the same server session

Question

I\'m sure we\'ve all worked on, or are aware of web applications (especially in the enterprise) that have tightly bound themselves to the server session. In these cases, it

Answer 1

If you really are in a bind and cannot fix the application to sanely handle multiple browser instances sharing the same session, then yes, this is a sound approach.

For what it is worth, I have used the exact same concept to enforce concurrent usage license constraints - so it WILL detect multiple users sharing the same "key", which in your case is the session.

I would modify your approach only slightly, and have the ping message contain the date/time of the client - so that you can avoid dealing with network latency at all in your calculations.