From ef004897170b1a637f5e34f1e304b771acd7a344 Mon Sep 17 00:00:00 2001
From: quazzie <quazzie@gmail.com>
Date: Fri, 22 Mar 2013 10:35:50 +0100
Subject: [PATCH] fix($location): fix back-button not triggering
 $locationChangeStart

$locationChangeStart does not get broadcasted when pressing the back-button.

Closes #2109
---
 src/ng/location.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ng/location.js b/src/ng/location.js
index 3196b1d57b7c..e99137d5cd4a 100644
--- a/src/ng/location.js
+++ b/src/ng/location.js
@@ -577,6 +577,10 @@ function $LocationProvider(){
     // update $location when $browser url changes
     $browser.onUrlChange(function(newUrl) {
       if ($location.absUrl() != newUrl) {
+        if ($rootScope.$broadcast('$locationChangeStart', newUrl, $location.absUrl()).defaultPrevented) {
+          $browser.url($location.absUrl());
+          return;
+        }
         $rootScope.$evalAsync(function() {
           var oldUrl = $location.absUrl();