diff --git a/modules/Navigation.js b/modules/Navigation.js
index 0e6027a397..c503c939e1 100644
--- a/modules/Navigation.js
+++ b/modules/Navigation.js
@@ -44,16 +44,16 @@ var Navigation = {
    * Transitions to the URL specified in the arguments by pushing
    * a new URL onto the history stack.
    */
-  transitionTo(to, params, query) {
-    this.context.router.transitionTo(to, params, query);
+  transitionTo(to, params, query, data) {
+    this.context.router.transitionTo(to, params, query, data);
   },
 
   /**
    * Transitions to the URL specified in the arguments by replacing
    * the current URL in the history stack.
    */
-  replaceWith(to, params, query) {
-    this.context.router.replaceWith(to, params, query);
+  replaceWith(to, params, query, data) {
+    this.context.router.replaceWith(to, params, query, data);
   },
 
   /**
diff --git a/modules/Redirect.js b/modules/Redirect.js
index 0b92449b82..5522f2d7c3 100644
--- a/modules/Redirect.js
+++ b/modules/Redirect.js
@@ -1,10 +1,11 @@
 /**
  * Encapsulates a redirect to the given route.
  */
-function Redirect(to, params, query) {
+function Redirect(to, params, query, data) {
   this.to = to;
   this.params = params;
   this.query = query;
+  this.data = data;
 }
 
 module.exports = Redirect;
diff --git a/modules/TestUtils.js b/modules/TestUtils.js
index 47b6a05033..cc5a2a5c96 100644
--- a/modules/TestUtils.js
+++ b/modules/TestUtils.js
@@ -35,7 +35,7 @@ exports.Async = React.createClass({
   statics: {
     delay: 10,
 
-    willTransitionTo: function (transition, params, query, callback) {
+    willTransitionTo: function (transition, params, query, callback, data) {
       setTimeout(callback, exports.Async.delay);
     }
   },
@@ -61,7 +61,7 @@ exports.RedirectToFooAsync = React.createClass({
   statics: {
     delay: 10,
 
-    willTransitionTo: function (transition, params, query, callback) {
+    willTransitionTo: function (transition, params, query, callback, data) {
       setTimeout(function () {
         transition.redirect('/foo');
         callback();
@@ -91,7 +91,7 @@ exports.AbortAsync = React.createClass({
   statics: {
     delay: 10,
 
-    willTransitionTo: function (transition, params, query, callback) {
+    willTransitionTo: function (transition, params, query, callback, data) {
       setTimeout(function () {
         transition.abort();
         callback();
diff --git a/modules/Transition.js b/modules/Transition.js
index f52d33a671..f8e4e00834 100644
--- a/modules/Transition.js
+++ b/modules/Transition.js
@@ -21,8 +21,8 @@ Transition.prototype.abort = function (reason) {
     this.abortReason = reason || 'ABORT';
 };
 
-Transition.prototype.redirect = function (to, params, query) {
-  this.abort(new Redirect(to, params, query));
+Transition.prototype.redirect = function (to, params, query, data) {
+  this.abort(new Redirect(to, params, query, data));
 };
 
 Transition.prototype.cancel = function () {
@@ -51,14 +51,14 @@ Transition.from = function (transition, routes, components, callback) {
   }, callback)();
 };
 
-Transition.to = function (transition, routes, params, query, callback) {
+Transition.to = function (transition, routes, params, query, data, callback) {
   routes.reduceRight(function (callback, route) {
     return function (error) {
       if (error || transition.abortReason) {
         callback(error);
       } else if (route.onEnter) {
         try {
-          route.onEnter(transition, params, query, callback);
+          route.onEnter(transition, params, query, callback, data);
 
           // If there is no callback in the argument list, call it automatically.
           if (route.onEnter.length < 4)
diff --git a/modules/__tests__/Router-test.js b/modules/__tests__/Router-test.js
index 3b3003a976..a7b7671d7a 100644
--- a/modules/__tests__/Router-test.js
+++ b/modules/__tests__/Router-test.js
@@ -192,7 +192,7 @@ describe('Router', function () {
           statics: {
             delay: Async.delay * 2,
 
-            willTransitionTo: function (transition, params, query, callback) {
+            willTransitionTo: function (transition, params, query, callback, data) {
               setTimeout(callback, LongAsync.delay);
             }
           },
@@ -585,7 +585,7 @@ describe('Router', function () {
       it('ignores aborting asynchronously in willTransitionTo when aborted before router.transitionTo', function (done) {
         var AbortAsync2 = React.createClass({
           statics: {
-            willTransitionTo: function (transition, params, query, callback) {
+            willTransitionTo: function (transition, params, query, callback, data) {
               transition.abort();
               setTimeout(callback, Async.delay);
             }
diff --git a/modules/createRouter.js b/modules/createRouter.js
index 833f5d2984..616b915f5f 100644
--- a/modules/createRouter.js
+++ b/modules/createRouter.js
@@ -112,7 +112,7 @@ function queryIsActive(activeQuery, query) {
  *
  * - routes           (required) The route config
  * - location         The location to use. Defaults to HashLocation when
- *                    the DOM is available, "/" otherwise
+ *                    the DOM is available, a StaticLocation for "/" otherwise
  * - scrollBehavior   The scroll behavior to use. Defaults to ImitateBrowserBehavior
  *                    when the DOM is available, null otherwise
  * - onError          A function that is used to handle errors
@@ -244,14 +244,14 @@ function createRouter(options) {
        * Transitions to the URL specified in the arguments by pushing
        * a new URL onto the history stack.
        */
-      transitionTo: function (to, params, query) {
+      transitionTo: function (to, params, query, data) {
         var path = Router.makePath(to, params, query);
 
         if (pendingTransition) {
           // Replace so pending location does not stay in history.
-          location.replace(path);
+          location.replace(path, data);
         } else {
-          location.push(path);
+          location.push(path, data);
         }
       },
 
@@ -259,8 +259,8 @@ function createRouter(options) {
        * Transitions to the URL specified in the arguments by replacing
        * the current URL in the history stack.
        */
-      replaceWith: function (to, params, query) {
-        location.replace(Router.makePath(to, params, query));
+      replaceWith: function (to, params, query, data) {
+        location.replace(Router.makePath(to, params, query), data);
       },
 
       /**
@@ -292,7 +292,7 @@ function createRouter(options) {
         if (abortReason instanceof Cancellation) {
           return;
         } else if (abortReason instanceof Redirect) {
-          location.replace(Router.makePath(abortReason.to, abortReason.params, abortReason.query));
+          location.replace(Router.makePath(abortReason.to, abortReason.params, abortReason.query), abortReason.data);
         } else {
           location.pop();
         }
@@ -304,7 +304,7 @@ function createRouter(options) {
       },
 
       handleLocationChange: function (change) {
-        Router.dispatch(change.path, change.type);
+        Router.dispatch(change.path, change.type, change.data);
       },
 
       /**
@@ -323,13 +323,13 @@ function createRouter(options) {
        * transition. To resolve asynchronously, they may use the callback argument. If no
        * hooks wait, the transition is fully synchronous.
        */
-      dispatch: function (path, action) {
+      dispatch: function (path, action, data) {
         Router.cancelPendingTransition();
 
         var prevPath = state.path;
         var isRefreshing = action == null;
-
-        if (prevPath === path && !isRefreshing)
+        var hasData = data != null;
+        if (prevPath === path && !isRefreshing && !hasData)
           return; // Nothing to do!
 
         // Record the scroll position as early as possible to
@@ -355,9 +355,10 @@ function createRouter(options) {
         var nextRoutes = match.routes || [];
         var nextParams = match.params || {};
         var nextQuery = match.query || {};
+        var nextData = data || {};
 
         var fromRoutes, toRoutes;
-        if (prevRoutes.length) {
+        if (data == null && prevRoutes.length) {
           fromRoutes = prevRoutes.filter(function (route) {
             return !hasMatch(nextRoutes, route, prevParams, nextParams, prevQuery, nextQuery);
           });
@@ -379,14 +380,15 @@ function createRouter(options) {
           if (error || transition.abortReason)
             return dispatchHandler.call(Router, error, transition); // No need to continue.
 
-          Transition.to(transition, toRoutes, nextParams, nextQuery, function (error) {
+          Transition.to(transition, toRoutes, nextParams, nextQuery, nextData, function (error) {
             dispatchHandler.call(Router, error, transition, {
               path: path,
               action: action,
               pathname: match.pathname,
               routes: nextRoutes,
               params: nextParams,
-              query: nextQuery
+              query: nextQuery,
+              data: nextData
             });
           });
         });
@@ -433,7 +435,7 @@ function createRouter(options) {
       },
 
       refresh: function () {
-        Router.dispatch(location.getCurrentPath(), null);
+        Router.dispatch(location.getCurrentPath(), null, location.data);
       },
 
       stop: function () {
diff --git a/modules/locations/HashLocation.js b/modules/locations/HashLocation.js
index a3ac0da6aa..17294f0cf2 100644
--- a/modules/locations/HashLocation.js
+++ b/modules/locations/HashLocation.js
@@ -4,14 +4,16 @@ var History = require('../History');
 var _listeners = [];
 var _isListening = false;
 var _actionType;
+var _data = [];
 
-function notifyChange(type) {
+function notifyChange(type, data) {
   if (type === LocationActions.PUSH)
     History.length += 1;
 
   var change = {
     path: HashLocation.getCurrentPath(),
-    type: type
+    type: type,
+    data: data
   };
 
   _listeners.forEach(function (listener) {
@@ -38,7 +40,7 @@ function onHashChange() {
     // manipulation. So just guess 'pop'.
     var curActionType = _actionType;
     _actionType = null;
-    notifyChange(curActionType || LocationActions.POP);
+    notifyChange(curActionType || LocationActions.POP, _data.pop());
   }
 }
 
@@ -80,13 +82,15 @@ var HashLocation = {
     }
   },
 
-  push(path) {
+  push(path, data) {
     _actionType = LocationActions.PUSH;
+    _data.push(data);
     window.location.hash = path;
   },
 
-  replace(path) {
+  replace(path, data) {
     _actionType = LocationActions.REPLACE;
+    _data.push(data);
     window.location.replace(
       window.location.pathname + window.location.search + '#' + path
     );
diff --git a/modules/locations/HistoryLocation.js b/modules/locations/HistoryLocation.js
index d08dfa34ed..cf53a6466b 100644
--- a/modules/locations/HistoryLocation.js
+++ b/modules/locations/HistoryLocation.js
@@ -4,10 +4,11 @@ var History = require('../History');
 var _listeners = [];
 var _isListening = false;
 
-function notifyChange(type) {
+function notifyChange(type, data) {
   var change = {
     path: HistoryLocation.getCurrentPath(),
-    type: type
+    type: type,
+    data: data
   };
 
   _listeners.forEach(function (listener) {
@@ -57,15 +58,15 @@ var HistoryLocation = {
     }
   },
 
-  push(path) {
+  push(path, data) {
     window.history.pushState({ path: path }, '', path);
     History.length += 1;
-    notifyChange(LocationActions.PUSH);
+    notifyChange(LocationActions.PUSH, data);
   },
 
-  replace(path) {
+  replace(path, data) {
     window.history.replaceState({ path: path }, '', path);
-    notifyChange(LocationActions.REPLACE);
+    notifyChange(LocationActions.REPLACE, data);
   },
 
   pop: History.back,
diff --git a/modules/locations/StaticLocation.js b/modules/locations/StaticLocation.js
index 49dcd6a426..20305c9ae5 100644
--- a/modules/locations/StaticLocation.js
+++ b/modules/locations/StaticLocation.js
@@ -11,8 +11,9 @@ function throwCannotModify() {
  */
 class StaticLocation {
 
-  constructor(path) {
-    this.path = path;
+  constructor(path, data) {
+    this.path = path
+    this.data = data;
   }
 
   getCurrentPath() {
diff --git a/modules/locations/TestLocation.js b/modules/locations/TestLocation.js
index 76cab8ad65..91d3d316b0 100644
--- a/modules/locations/TestLocation.js
+++ b/modules/locations/TestLocation.js
@@ -41,13 +41,13 @@ class TestLocation {
     });
   }
 
-  push(path) {
+  push(path, data) {
     this.history.push(path);
     this._updateHistoryLength();
-    this._notifyChange(LocationActions.PUSH);
+    this._notifyChange(LocationActions.PUSH, data);
   }
 
-  replace(path) {
+  replace(path, data) {
     invariant(
       this.history.length,
       'You cannot replace the current path with no history'
@@ -55,7 +55,7 @@ class TestLocation {
 
     this.history[this.history.length - 1] = path;
 
-    this._notifyChange(LocationActions.REPLACE);
+    this._notifyChange(LocationActions.REPLACE, data);
   }
 
   pop() {