From 14ebfbea279c3d949e270a03bab78e02e3e0dac4 Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Sat, 7 Mar 2020 14:16:54 -0500
Subject: [PATCH] Improve set-constant.js scriptlet

The scriptlet will now still try to trap a specific
property if a segment of the chain is not undefined
while yet not an object either.

For example, this now allows to set a value on
`document.body.onselectstart` when `document.body` has
not been instantiated yet by the browser parser,
whereas this would previously fail because
`document.body` would be `null` while the scriptlet
was testing against `undefined`.
---
 assets/resources/scriptlets.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/assets/resources/scriptlets.js b/assets/resources/scriptlets.js
index 3d6f5a20597b8..a8900800c617e 100644
--- a/assets/resources/scriptlets.js
+++ b/assets/resources/scriptlets.js
@@ -549,7 +549,7 @@
         const prop = chain.slice(0, pos);
         let v = owner[prop];
         chain = chain.slice(pos + 1);
-        if ( v !== undefined ) {
+        if ( v instanceof Object ) {
             makeProxy(v, chain);
             return;
         }