From f2b84bc39038d11eed7a82da0ddb875fa48839a4 Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adam@chlipala.net>
Date: Sat, 14 Jan 2012 11:24:17 -0500
Subject: Fix bug with 'dynClass' immediately inside <dyn>

---
 lib/js/urweb.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'lib')

diff --git a/lib/js/urweb.js b/lib/js/urweb.js
index ba73e744..adab5f43 100644
--- a/lib/js/urweb.js
+++ b/lib/js/urweb.js
@@ -643,9 +643,10 @@ function parent() {
 }
 
 function addNode(node) {
-    if (thisScript)
-        thisScript.parentNode.replaceChild(node, thisScript);
-    else
+    if (thisScript) {
+        if (thisScript.parentNode)
+            thisScript.parentNode.replaceChild(node, thisScript);
+    } else
         lastParent().appendChild(node);
 }
 
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