by Len17 » Thu Nov 18, 2010 2:53 pm
Pretty much any web site will log you out after an inactive period - typically 1/2 hour. I long ago learned to put anything longer than two sentences into a text file, not a browser edit box.
As for "why", it has to do with the nature of HTTP transactions - there's no way for the server to know when a user has closed the web page, so it has to guess.