Check if Document has getHeadData method (#16)

* Check if Document has getHeadData method Fixes i.e. JsonDocument calls * Update httpheader.php
zero-24 · Aug 15, 2019 · 056a459 · 056a459
1 parent 2249980
commit 056a459
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/httpheader.php b/httpheader.php
@@ -191,6 +191,12 @@ public function onAfterRender()
 	{
 		$scriptHashesEnabled = (int) $this->params->get('script_hashes_enabled', 0);
 		$styleHashesEnabled  = (int) $this->params->get('style_hashes_enabled', 0);
+
+		if (!method_exists(Factory::getDocument(), 'getHeadData'))
+		{
+			return;
+		}
+
 		$headData            = Factory::getDocument()->getHeadData();
 		$scriptHashes        = [];
 		$styleHashes         = [];