Index: branches/5.3.x/core/kernel/utility/debugger.php
===================================================================
--- branches/5.3.x/core/kernel/utility/debugger.php
+++ branches/5.3.x/core/kernel/utility/debugger.php
@@ -509,7 +509,11 @@
 			{
 				$components = parse_url(DBG_EDITOR_URL);
 
-				$this->editorUrlData['url'] = $components['scheme'] . '://' . $components['host'] . $components['path'];
+				$this->editorUrlData['url'] = $components['scheme'] . '://' . $components['host'];
+
+				if ( isset($components['path']) ) {
+					$this->editorUrlData['url'] .= $components['path'];
+				}
 
 				if ( isset($components['query']) ) {
 					parse_str(html_entity_decode($components['query']), $this->editorUrlData['params']);