Prevent alert in ie11 if there is no changes

GEO-1043
camptocamp · Oct 2, 2018 · e3adbf1 · e3adbf1
1 parent 9fe59ad
commit e3adbf1
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/contribs/gmf/src/objectediting/component.js b/contribs/gmf/src/objectediting/component.js
@@ -986,7 +986,7 @@ exports.Controller.prototype.refreshWMSLayer_ = function() {
  * Called before the window unloads. Show a confirmation message if there are
  * unsaved modifications.
  * @param {Event} e Event.
- * @return {string} Message
+ * @return {string|undefined} Message
  * @private
  */
 exports.Controller.prototype.handleWindowBeforeUnload_ = function(e) {
@@ -996,7 +996,7 @@ exports.Controller.prototype.handleWindowBeforeUnload_ = function(e) {
     (e || window.event).returnValue = msg;
     return msg;
   }
-  return '';
+  return undefined;
 };