Fix kses filter for un-prettified filters (#49004)

* Fix kses filter for un-prettified filters * Remove unnecessary backslash
WordPress · Mar 13, 2023 · 4feb24f · 4feb24f
1 parent 699dd44
commit 4feb24f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/experimental/kses.php b/lib/experimental/kses.php
@@ -78,7 +78,7 @@ function gutenberg_override_core_kses_init_filters() {
  */
 function allow_filter_in_styles( $allow_css, $css_test_string ) {
 	if ( preg_match(
-		"/^filter: url\('#wp-duotone-[-a-zA-Z0-9]+'\) \!important$/",
+		"/^filter:\s*url\('#wp-duotone-[-a-zA-Z0-9]+'\) !important$/",
 		$css_test_string
 	) ) {
 		return true;