Fix runtime system handling of <dyn> inside <table> inside <dyn>

1 files changed, 7 insertions, 2 deletions

diff --git a/lib/js/urweb.js b/lib/js/urweb.js
index adab5f43..b557147b 100644
--- a/lib/js/urweb.js
+++ b/lib/js/urweb.js
@@ -699,10 +699,15 @@ function normalizeTable(table) {
 
     for (var tbody = table.firstChild; tbody; tbody = tbody.nextSibling) {
         if (tbody.tagName == "TBODY") {
+            var firstChild = tbody.firstChild;
+
             for (script = table.firstChild; script && script != tbody; script = next) {
                 next = script.nextSibling;
 
-                tbody.insertBefore(script, tbody.firstChild);
+                if (firstChild)
+                    tbody.insertBefore(script, firstChild);
+                else
+                    tbody.appendChild(script);
             }
 
             return;
@@ -713,7 +718,7 @@ function normalizeTable(table) {
     for (script = table.firstChild; script; script = next) {
         next = script.nextSibling;
 
-        tbody.insertBefore(script, tbody.firstChild);
+        tbody.appendChild(script);
     }
     table.appendChild(tbody);
 }