diff --git a/CHANGES.md b/CHANGES.md
index 767a7ff8e71..4749ea5a9c1 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -3,6 +3,10 @@ CKEditor 4 Changelog
 
 ## CKEditor 4.5.1
 
+Fixed Issues:
+
+* [#13486](http://dev.ckeditor.com/ticket/13486): Fixed: Upload image should log an error, not throw an error when upload URL is not set.
+
 ## CKEditor 4.5
 
 New Features:
diff --git a/plugins/filetools/plugin.js b/plugins/filetools/plugin.js
index 94b324a7930..c967e0243d9 100644
--- a/plugins/filetools/plugin.js
+++ b/plugins/filetools/plugin.js
@@ -718,7 +718,7 @@
 		 *
 		 * @param {Object} config The configuration file.
 		 * @param {String} [type] Upload file type.
-		 * @returns {String} Upload URL.
+		 * @returns {String/null} Upload URL or `null` if none of the config options was defined.
 		 */
 		getUploadUrl: function( config, type ) {
 			var capitalize = CKEDITOR.tools.capitalize;
@@ -733,7 +733,7 @@
 				return config.filebrowserUploadUrl + '&responseType=json';
 			}
 
-			throw 'Upload URL is not defined.';
+			return null;
 		},
 
 		/**
diff --git a/plugins/uploadimage/plugin.js b/plugins/uploadimage/plugin.js
index 7421ce07065..fdf27c91f08 100644
--- a/plugins/uploadimage/plugin.js
+++ b/plugins/uploadimage/plugin.js
@@ -26,6 +26,14 @@
 			var fileTools = CKEDITOR.fileTools,
 				uploadUrl = fileTools.getUploadUrl( editor.config, 'image' );
 
+			if ( !uploadUrl ) {
+				window.console && window.console.log(
+					'Error: Upload URL for the Upload Image feature was not defined. ' +
+					'For more information visit: http://docs.ckeditor.com/#!/guide/dev_file_upload'
+				);
+				return;
+			}
+
 			// Handle images which are available in the dataTransfer.
 			fileTools.addUploadWidget( editor, 'uploadimage', {
 				supportedTypes: /image\/(jpeg|png|gif)/,
diff --git a/tests/plugins/filetools/filetools.js b/tests/plugins/filetools/filetools.js
index a589e9c6a3c..698ba8f1d9b 100644
--- a/tests/plugins/filetools/filetools.js
+++ b/tests/plugins/filetools/filetools.js
@@ -94,12 +94,9 @@
 		},
 
 		'test getUploadUrl - throw error if no matching config': function() {
-			try {
-				getUploadUrl( {} );
-				assert.fail( 'getUploadUrl should throw error if no matching configuration option was found.' );
-			} catch ( err ) {
-				assert.areSame( 'Upload URL is not defined.', err );
-			}
+			var uploadUrl = getUploadUrl( {} );
+
+			assert.isNull( uploadUrl, 'null returned when none of upload URLs is defined' );
 		},
 
 		'test isTypeSupported 1': function() {
diff --git a/tests/plugins/uploadimage/manual/configerror.html b/tests/plugins/uploadimage/manual/configerror.html
new file mode 100644
index 00000000000..c4f395cca73
--- /dev/null
+++ b/tests/plugins/uploadimage/manual/configerror.html
@@ -0,0 +1,7 @@
+<div id="editor">
+	<p>I'm working!</p>
+</div>
+
+<script>
+	CKEDITOR.replace( 'editor' );
+</script>
\ No newline at end of file
diff --git a/tests/plugins/uploadimage/manual/configerror.md b/tests/plugins/uploadimage/manual/configerror.md
new file mode 100644
index 00000000000..c4daf54c113
--- /dev/null
+++ b/tests/plugins/uploadimage/manual/configerror.md
@@ -0,0 +1,10 @@
+@bender-ui: collapsed
+@bender-tags: 4.5.1, tc, 13486, filetools
+@bender-ckeditor-plugins: uploadimage, wysiwygarea, toolbar, basicstyles
+
+Run this test with the console opened.
+
+Expected:
+
+* Editor should be fully functional except the `uploadimage` plugin.
+* No errors on IE8-9, an error logged in the console that `upload URL` was not set on other browsers.
\ No newline at end of file