mitigate cyclic reference between output rules and the traverser objects

1 files changed, 7 insertions, 0 deletions

diff --git a/src/HTML5/Serializer/OutputRules.php b/src/HTML5/Serializer/OutputRules.php
index 1c4e892..ec467f2 100644
--- a/src/HTML5/Serializer/OutputRules.php
+++ b/src/HTML5/Serializer/OutputRules.php
@@ -182,6 +182,13 @@ class OutputRules implements RulesInterface
         return $this;
     }
 
+    public function unsetTraverser()
+    {
+        $this->traverser = null;
+
+        return $this;
+    }
+
     public function document($dom)
     {
         $this->doctype();