Curing the “Back Button Blues”

Question

Ever stumbled on a tutorial that you feel is of great value but not quite explained properly? That\'s my dilemma. I know THIS TUTORIAL has some value but I just can\'t get it. <

Answer 1

The part I'm particularly interested in is controlling the back button in order to prevent form duplicate entries into a database when the back button is pressed.

Your premise is wrong. There is no such thing as "Back Button Blues", if you design your application as a web application. If you design your application without any server side state, you will never run into this problem in the first case. This minimalistic approach to web applications works remarkably well, and is usually known as REST.