diff --git a/lib/OpenLayers/Tile/Image/IFrame.js b/lib/OpenLayers/Tile/Image/IFrame.js
index eefa7bbe91..b29798cccc 100644
--- a/lib/OpenLayers/Tile/Image/IFrame.js
+++ b/lib/OpenLayers/Tile/Image/IFrame.js
@@ -65,7 +65,11 @@ OpenLayers.Tile.Image.IFrame = {
                 // And if we had an iframe we also remove the event pane.
 
                 if(fromIFrame) {
+                    this.blankImageUrl = this._blankImageUrl;
                     this.frame.removeChild(this.frame.firstChild);
+                } else {
+                    this._blankImageUrl = this.blankImageUrl;
+                    this.blankImageUrl = "about:blank";
                 }
             }
         }
@@ -85,7 +89,7 @@ OpenLayers.Tile.Image.IFrame = {
                 style.width = "100%";
                 style.height = "100%";
                 style.zIndex = 1;
-                style.backgroundImage = "url(" + this.blankImageUrl + ")";
+                style.backgroundImage = "url(" + this._blankImageUrl + ")";
                 this.frame.appendChild(eventPane);
             }
 
@@ -133,7 +137,7 @@ OpenLayers.Tile.Image.IFrame = {
             return OpenLayers.Tile.Image.prototype.getImage.apply(this, arguments);
         }
     },
-
+    
     /**
      * Method: createRequestForm
      * Create the html <form> element with width, height, bbox and all