override backbone.js _updateHash to replace location.replace for old devices with window.history.replaceState

backbone.replaceHash.js

var oldBrowser = (reContainsAll([/mozilla\/5.0/i, /android/i, /applewebkit/i], navigator.userAgent)
                    || reContainsAll([/mozilla\/5.0/i, /iphone os (5|4|3|2|1){1}/i, /applewebkit/i], navigator.userAgent))
                    && !reContainsAll([/chrome/i], navigator.userAgent);

Backbone.History.prototype._updateHash = function(location, fragment, replace) {
      var base = location.toString().replace(/(javascript:|#).*$/, '') + '#';
      if (replace) {
          if (oldBrowser) {
              window.history.replaceState({}, document.title, base + fragment);
          } else {
              location.replace(base + fragment);
          }
      } else {
          location.hash = fragment;
      }
}

contains.underscore.js

var reContainsAll = function (arr, str) { 
    var ret = true;
    _.each(arr, function (val) {
        if (!str.match(val)) {
            ret = false;
            return;
        }
    })
    return ret;
}