Fix NavigationProvider throwing errors when doc.file is missing. Fixes …

…#13491 Signed-off-by: petetnt <pete.a.nykanen@gmail.com>
adobe · Jun 28, 2017 · efc3554 · efc3554
1 parent 57f778f
commit efc3554
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/src/extensions/default/NavigationAndHistory/NavigationProvider.js b/src/extensions/default/NavigationAndHistory/NavigationProvider.js
@@ -481,8 +481,10 @@ define(function (require, exports, module) {
     */
     function _handleExternalChange(evt, doc) {
         if (doc) {
-            _removeBackwardFramesForFile(doc.file);
-            _removeForwardFramesForFile(doc.file);
+            if (doc.file) {
+              _removeBackwardFramesForFile(doc.file);
+	      _removeForwardFramesForFile(doc.file);
+	    }
             _validateNavigationCmds();
         }
     }
@@ -549,3 +551,4 @@ define(function (require, exports, module) {
 
     exports.init = init;
 });
+