From 82db2ae624c82872d52f21b633304e7c2acc4ce6 Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Mon, 14 Jul 2025 07:29:57 -0400
Subject: [PATCH] Place the hidden svg/defs elements at the beginning of the
 document, not the end

---
 ts/handlers/html/HTMLDocument.ts | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ts/handlers/html/HTMLDocument.ts b/ts/handlers/html/HTMLDocument.ts
index 2e9b04bd3..e5d0ff9cc 100644
--- a/ts/handlers/html/HTMLDocument.ts
+++ b/ts/handlers/html/HTMLDocument.ts
@@ -278,10 +278,16 @@ export class HTMLDocument<N, T, D> extends AbstractMathDocument<N, T, D> {
    *  Add any elements needed for the document
    */
   protected addPageElements() {
-    const body = this.adaptor.body(this.document);
+    const adaptor = this.adaptor;
+    const body = adaptor.body(this.document);
     const node = this.documentPageElements();
     if (node) {
-      this.adaptor.append(body, node);
+      const child = adaptor.firstChild(body);
+      if (child) {
+        adaptor.insert(node, child);
+      } else {
+        adaptor.append(body, node);
+      }
     }
   }