From 2cbde0a9766cee8ed7c8684d9196612aef0a89c1 Mon Sep 17 00:00:00 2001
From: AlexCD <cdalxndr@yahoo.com>
Date: Mon, 30 Aug 2021 23:00:00 +0300
Subject: [PATCH] prevent uninitialized js objects

---
 .../htmlunit/javascript/SimpleScriptable.java        | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/main/java/com/gargoylesoftware/htmlunit/javascript/SimpleScriptable.java b/src/main/java/com/gargoylesoftware/htmlunit/javascript/SimpleScriptable.java
index 7eaf43b67f3..667565f49bc 100644
--- a/src/main/java/com/gargoylesoftware/htmlunit/javascript/SimpleScriptable.java
+++ b/src/main/java/com/gargoylesoftware/htmlunit/javascript/SimpleScriptable.java
@@ -78,6 +78,18 @@ public Object get(String name, final Scriptable start) {
         // Try to get property configured on object itself.
         Object response = super.get(name, start);
         if (response != NOT_FOUND) {
+            if (response instanceof ScriptableObject) {
+                ScriptableObject responseScriptable = (ScriptableObject) response;
+                if (responseScriptable.getParentScope() == null) {
+                    responseScriptable.setParentScope(this.getParentScope());
+                }
+            }
+            if (response instanceof SimpleScriptable) {
+                SimpleScriptable simpleScriptable = (SimpleScriptable) response;
+                if (simpleScriptable.getPrototype() == null) {
+                    simpleScriptable.setPrototype(getPrototype(simpleScriptable.getClass()));
+                }
+            }
             return response;
         }
         if (this == start) {