title: Keeping track after the back button
body: <p>I want to write a web app order system using the REST methodology for the first time. I understand the concept of the "message id" when things get posted to a page but this scenario comes up. Once a user posts to the web app, you can keep track of their state with an id attached to the URI but what happens if they hit the back button of the browser to the entry point of the app when they didn't have any id? They then lose their state in the transaction.</p>
  
  <p>I know you can always give them a cookie but you can't do that if they have cookies turned off and, worst case thinking here, they also have javascript turned off.</p>
  
  <p>Now, I understand the answer may be "Yes, that's what will happen", that's the end of the story, and I can live with that but, being new to this, is there something I'm missing?</p>