fixes complex css imports #2958

Signed-off-by: Andy Miller <[email protected]>

CHANGELOG.md

@@ -6,6 +6,7 @@
     * Reverted `Language::getDefault()` and `Language::getLanguage()` to return false again because of plugin compatibility (updated docblocks)
     * Fixed UTF-8 issue in `Excerpts::getExcerptsFromHtml`
     * Fixed some compatibility issues with recent Changes to `Assets` handling
+    * Fixed issue with `CSS_IMPORTS_REGEX` breaking with complex URLs [#2958](https://github.com/getgrav/grav/issues/2958)
 1. [](#improved)
     * Added ability to `noprocess` specific items only in Link/Image Excerpts, e.g. `http://foo.com/page?id=foo&target=_blank&noprocess=id` [#2954](https://github.com/getgrav/grav/pull/2954)
 

system/src/Grav/Common/Assets/BaseAsset.php

@@ -22,9 +22,6 @@ abstract class BaseAsset extends PropertyObject
     protected const CSS_ASSET = true;
     protected const JS_ASSET = false;
 
-    /** @const Regex to match CSS import content */
-    protected const CSS_IMPORT_REGEX = '{@import(.*?);}';
-
     /** @var string|false */
     protected $asset;
     /** @var string */

system/src/Grav/Common/Assets/Pipeline.php

@@ -31,7 +31,7 @@ class Pipeline extends PropertyObject
     protected const CSS_SOURCEMAP_REGEX = '{\/\*# (.*?) \*\/}';
 
     /** @const Regex to match CSS import content */
-    protected const CSS_IMPORT_REGEX = '{@import(.*?);}';
+    protected const CSS_IMPORT_REGEX = '{@import.*?["\']([^"\']+)["\'].*?;}';
 
     protected const FIRST_FORWARDSLASH_REGEX = '{^\/{1}\w}';