From dbc3109ddb7dc7aeec53e23791110cca366dea90 Mon Sep 17 00:00:00 2001
From: Tim Schaub <tim.schaub@gmail.com>
Date: Thu, 7 Nov 2013 10:30:58 -0700
Subject: [PATCH] Only call expireTiles_ if already rendered

---
 src/ol/renderer/canvas/canvasvectorlayerrenderer.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ol/renderer/canvas/canvasvectorlayerrenderer.js b/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
index eb881e453d..2cc87bc590 100644
--- a/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
+++ b/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
@@ -329,7 +329,9 @@ ol.renderer.canvas.VectorLayer.prototype.getFeaturesForPixel =
  * @private
  */
 ol.renderer.canvas.VectorLayer.prototype.handleLayerChange_ = function(event) {
-  this.expireTiles_(event.extents);
+  if (goog.isDef(this.renderedResolution_)) {
+    this.expireTiles_(event.extents);
+  }
   this.requestMapRenderFrame_();
 };