overwrite-back-button-history-api

js-overwrite-back-button.js

//source https://stackoverflow.com/questions/6359327/detect-back-button-click-in-browser
window.onload = function() {
  if (typeof history.pushState === "function") {
    history.pushState("jibberish", null, null);
    window.onpopstate = function() {
      history.pushState('newjibberish', null, null);
      // Handle the back (or forward) buttons here
      // Will NOT handle refresh, use onbeforeunload for this.
    };
  } else {
    var ignoreHashChange = true;
    window.onhashchange = function() {
      if (!ignoreHashChange) {
        ignoreHashChange = true;
        window.location.hash = Math.random();
        // Detect and redirect change here
        // Works in older FF and IE9
        // * it does mess with your hash symbol (anchor?) pound sign
        // delimiter on the end of the URL
      } else {
        ignoreHashChange = false;
      }
    };
  }
}