diff --git a/CHANGES.md b/CHANGES.md
index bfeae095e93..a1884ca1899 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,6 +3,10 @@ CKEditor 4 Changelog
 
 ## CKEditor 4.4
 
+New Features:
+
+* [#11225](http://dev.ckeditor.com/ticket/11225): Introduced the [`CKEDITOR.tools.transparentImageData`](http://localhost/cksource/ckeditor-docs/build/#!/api/CKEDITOR.tools-property-transparentImageData) property which contains transparent image data to be used in CSS or as images' source.
+
 ## CKEditor 4.3.3
 
 Fixed Issues:
diff --git a/core/tools.js b/core/tools.js
index 7f35343c3a8..883df95e633 100644
--- a/core/tools.js
+++ b/core/tools.js
@@ -1116,7 +1116,15 @@
 				if ( withAppend )
 					doc.appendChild( el );
 			}
-		}
+		},
+
+		/**
+		 * The data URI of a transparent image. May be used e.g. in HTML as an image source or in CSS in `url()`.
+		 *
+		 * @since 4.3.1
+		 * @readonly
+		 */
+		transparentImageData: 'data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw=='
 	};
 } )();
 
diff --git a/plugins/fakeobjects/images/spacer.gif b/plugins/fakeobjects/images/spacer.gif
deleted file mode 100644
index 5bfd67a2d6f..00000000000
Binary files a/plugins/fakeobjects/images/spacer.gif and /dev/null differ
diff --git a/plugins/fakeobjects/plugin.js b/plugins/fakeobjects/plugin.js
index f2b13cadf06..923bd2daf2c 100644
--- a/plugins/fakeobjects/plugin.js
+++ b/plugins/fakeobjects/plugin.js
@@ -88,7 +88,7 @@
 
 		// Do not set "src" on high-contrast so the alt text is displayed. (#8945)
 		if ( !CKEDITOR.env.hc )
-			attributes.src = CKEDITOR.getUrl( plugin.path + 'images/spacer.gif' );
+			attributes.src = CKEDITOR.tools.transparentImageData;
 
 		if ( realElementType )
 			attributes[ 'data-cke-real-element-type' ] = realElementType;
@@ -133,7 +133,7 @@
 
 		// Do not set "src" on high-contrast so the alt text is displayed. (#8945)
 		if ( !CKEDITOR.env.hc )
-			attributes.src = CKEDITOR.getUrl( plugin.path + 'images/spacer.gif' );
+			attributes.src = CKEDITOR.tools.transparentImageData;
 
 		if ( realElementType )
 			attributes[ 'data-cke-real-element-type' ] = realElementType;
diff --git a/plugins/widget/plugin.js b/plugins/widget/plugin.js
index bce90ea33b2..339c6ad03fc 100644
--- a/plugins/widget/plugin.js
+++ b/plugins/widget/plugin.js
@@ -2454,9 +2454,8 @@
 	// WIDGET helpers ---------------------------------------------------------
 	//
 
-	var transparentImageData = 'data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw%3D%3D',
-		// LEFT, RIGHT, UP, DOWN, DEL, BACKSPACE - unblock default fake sel handlers.
-		keystrokesNotBlockedByWidget = { 37: 1, 38: 1, 39: 1, 40: 1, 8: 1, 46: 1 };
+	// LEFT, RIGHT, UP, DOWN, DEL, BACKSPACE - unblock default fake sel handlers.
+	var keystrokesNotBlockedByWidget = { 37: 1, 38: 1, 39: 1, 40: 1, 8: 1, 46: 1 };
 
 	function cancel( evt ) {
 		evt.cancel();
@@ -2597,7 +2596,7 @@
 			img.setAttributes( {
 				'class': 'cke_reset cke_widget_drag_handler',
 				'data-cke-widget-drag-handler': '1',
-				src: transparentImageData,
+				src: CKEDITOR.tools.transparentImageData,
 				width: DRAG_HANDLER_SIZE,
 				title: editor.lang.widget.move,
 				height: DRAG_HANDLER_SIZE
@@ -2748,7 +2747,7 @@
 		if ( !img ) {
 			img = new CKEDITOR.dom.element( 'img', widget.editor.document );
 			img.setAttributes( {
-				src: transparentImageData,
+				src: CKEDITOR.tools.transparentImageData,
 				'class': 'cke_reset cke_widget_mask'
 			} );
 			widget.wrapper.append( img );