From 4d92cec456343a8c8a9bd3bb1500f44b3f133882 Mon Sep 17 00:00:00 2001
From: Daniel Ruthardt <dr@zoesolutions.eu>
Date: Sun, 30 Jul 2017 22:06:38 +0200
Subject: [PATCH] Resolves issue #115.

---
 src/main/java/helma/scripting/rhino/HopObjectCtor.java | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/main/java/helma/scripting/rhino/HopObjectCtor.java b/src/main/java/helma/scripting/rhino/HopObjectCtor.java
index f4fafd6d..9bcbafb9 100644
--- a/src/main/java/helma/scripting/rhino/HopObjectCtor.java
+++ b/src/main/java/helma/scripting/rhino/HopObjectCtor.java
@@ -176,7 +176,14 @@ public class HopObjectCtor extends FunctionObject {
             } catch (Exception x) {
                 return null;
             }
-            return node == null ? null : Context.toObject(node, this);
+
+            if (node == null
+                    || !HopObjectCtor.this.core.app.getPrototype(node)
+                            .isInstanceOf(type)) {
+                return null;
+            }
+
+            return Context.toObject(node, this);
         }
 
         public int getArity() {