Never include trailing slash on the root.

backbone.js

@@ -1473,14 +1473,14 @@
       if (!History.started) return false;
       if (!options || options === true) options = {trigger: !!options};
 
-      var trailing = fragment === '/';
       fragment = this.getFragment(fragment || '');
-
       if (this.fragment === fragment) return;
       this.fragment = fragment;
 
       var url = this.root + fragment;
-      if (!trailing && fragment === '') url = url.slice(0, -1);
+
+      // Don't include a trailing slash on the root.
+      if (fragment === '') url = url.slice(0, -1);
 
       // If pushState is available, we use it to set the fragment as a real URL.
       if (this._hasPushState) {

test/router.js

@@ -656,7 +656,7 @@ $(document).ready(function() {
     Backbone.history.checkUrl();
   });
 
-  test('Trailing slash on root.', 1, function() {
+  test('#2656 - No trailing slash on root.', 1, function() {
     Backbone.history.stop();
     Backbone.history = _.extend(new Backbone.History, {
       location: location,
@@ -671,19 +671,4 @@ $(document).ready(function() {
     Backbone.history.navigate('');
   });
 
-  test('Trailing slash on root.', 1, function() {
-    Backbone.history.stop();
-    Backbone.history = _.extend(new Backbone.History, {
-      location: location,
-      history: {
-        pushState: function(state, title, url){
-          strictEqual(url, '/root/');
-        }
-      }
-    });
-    location.replace('http://example.com/root/path');
-    Backbone.history.start({pushState: true, root: 'root'});
-    Backbone.history.navigate('/');
-  });
-
 });