Added skipping for absolute URLs at "AssetController::adjustCssUrl()".

framework/yii/console/controllers/AssetController.php

@@ -558,6 +558,10 @@ EOD
 			$fullMatch = $matches[0];
 			$inputUrl = $matches[1];
 
+			if (preg_match('/https?:\/\//is', $inputUrl)) {
+				return $fullMatch;
+			}
+
 			$outputUrlParts = array_fill(0, count($outputFileRelativePathParts), '..');
 			$outputUrlParts = array_merge($outputUrlParts, $inputFileRelativePathParts);
 

tests/unit/framework/console/controllers/AssetControllerTest.php

@@ -286,6 +286,18 @@ class AssetControllerTest extends TestCase
 				'/test/base/path/assets/output',
 				'.static-relative-dir-class {background-image: url("../../img/static_relative_dir.png");}',
 			),
+			array(
+				'.absolute-url-class {background-image: url(http://domain.com/img/image.gif);}',
+				'/test/base/path/assets/input',
+				'/test/base/path/assets/output',
+				'.absolute-url-class {background-image: url(http://domain.com/img/image.gif);}',
+			),
+			array(
+				'.absolute-url-secure-class {background-image: url(https://secure.domain.com/img/image.gif);}',
+				'/test/base/path/assets/input',
+				'/test/base/path/assets/output',
+				'.absolute-url-secure-class {background-image: url(https://secure.domain.com/img/image.gif);}',
+			),
 		);
 	}