It's unfortunate that a session can timeout while a Wiki entry in being written. If auto saving was in place or if there was an option to save work prior to a session timeout, it would prevent loss of work. At the moment, if I pause while writing a Wiki entry, I can return and continue to add content. However, upon clicking the Save button, I'm told that my session has timed out and, as a result, all of the content I've added is lost.
Autosave wiki contents while editing to avoid session timeout and loss of work