fix($browser): prevent infinite $digest from no trailing slash in IE9

fix($browser): prevent infinite $digest from no trailing slash in IE9

This fix prevents IE9 from throwing an infinite $digest error when the
user accesses the base
URL of the site without a trailing slash. Suppose you owned
http://www.mysite.com/app
and had an Angular app hosted in a subdirectory "app". If an IE9 user
accessed
http://www.mysite.com/app infinite $digest errors would be thrown on the
console, but the app
itself would eventually resolve properly and work fine. Now the infinite
$digest errors will
not be thrown.

Closes angular#11439

Author: hamfastgamgee

src/ng/browser.js

@@ -135,6 +135,12 @@ function Browser(window, document, $log, $sniffer) {
   cacheState();
   lastHistoryState = cachedState;
 
+  self.forceReloadLocationUpdate = function(url) {
+    if (reloadLocation) {
+      reloadLocation = url;
+    }
+  };
+  
   /**
    * @name $browser#url
    *
@@ -190,7 +196,9 @@ function Browser(window, document, $log, $sniffer) {
         // Do the assignment again so that those two variables are referentially identical.
         lastHistoryState = cachedState;
       } else {
-        reloadLocation = url;
+        if (!sameBase) {
+          reloadLocation = url;
+        }
         if (replace) {
           location.replace(url);
         } else if (!sameBase) {

src/ng/location.js

@@ -944,6 +944,9 @@ function $LocationProvider() {
                                         oldState === $location.$$state ? null : $location.$$state);
             }
             afterLocationChange(oldUrl, oldState);
+            if ($location.$$html5 && $location.absUrl().indexOf("#") > -1 && $location.absUrl() !== $browser.url()) {
+                $browser.forceReloadLocationUpdate($location.absUrl());
+            }
           }
         });
       }