[BUGFIX] Check if pattern is empty before it is used

lochmueller · Feb 4, 2018 · 655f2c8 · 655f2c8
1 parent b2f025c
commit 655f2c8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Classes/Manipulation/RemoveComments.php b/Classes/Manipulation/RemoveComments.php
@@ -67,7 +67,7 @@ protected function keepComment($commentHtml)
             $commentHtml = str_replace("-->", "", $commentHtml);
             $commentHtml = trim($commentHtml);
             foreach ($this->whiteListCommentsPatterns as $pattern) {
-                if (preg_match($pattern, $commentHtml)) {
+                if (!empty($pattern) && preg_match($pattern, $commentHtml)) {
                     return true;
                 }
             }