From f474e7ccd9e2a8accf0c4e87ef9c416fa1ee34d6 Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Tue, 17 Mar 2015 12:07:12 +0100
Subject: [PATCH] Don't unlisten image twice when disposing an ol.ImageTile

Fixes #3325
---
 src/ol/imagetile.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ol/imagetile.js b/src/ol/imagetile.js
index 1baec02742..e042e1fbcd 100644
--- a/src/ol/imagetile.js
+++ b/src/ol/imagetile.js
@@ -68,7 +68,9 @@ goog.inherits(ol.ImageTile, ol.Tile);
  * @inheritDoc
  */
 ol.ImageTile.prototype.disposeInternal = function() {
-  this.unlistenImage_();
+  if (this.state == ol.TileState.LOADING) {
+    this.unlistenImage_();
+  }
   goog.base(this, 'disposeInternal');
 };