onbeforeunload - after user accepts confirmation box, javascript doesn't execute

Question

I have the following code in onbeforeunload function.

window.onbeforeunload = function(){
   if(ThereIsUnsavedWork)
   {
      return "Please save your work so it doesn't get lost.";
   }

   DoMoreStuff(); 
}

After the confirmation window, the DoMoreStuff() function isn't getting executed. Is there a way to make sure that javascript code executes after user accepts the confirmation window?

Answer 1

Try to use onbeforeunload together with onunload as below.

window.onbeforeunload = function(){
   if(ThereIsUnsavedWork)
   {
      return "Please save your work so it doesn't get lost.";
   }
}

window.onunload = function () {
    DoMoreStuff();
}