From d8a85a0891a687fca39a5016da83b4ec9192f599 Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Mon, 22 Aug 2016 09:30:21 -0400
Subject: [PATCH] Check to make sure element is in the page before processing
 it.

---
 unpacked/jax/output/HTML-CSS/jax.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unpacked/jax/output/HTML-CSS/jax.js b/unpacked/jax/output/HTML-CSS/jax.js
index 4c8057381..43bb917e7 100644
--- a/unpacked/jax/output/HTML-CSS/jax.js
+++ b/unpacked/jax/output/HTML-CSS/jax.js
@@ -685,7 +685,7 @@
       //
       var jax = script.MathJax.elementJax, math = jax.root,
           div = jax.HTMLCSS.div, span = jax.HTMLCSS.span;
-      if (!div) return;
+      if (!document.getElementById(span.id)) return;
       //
       //  Set the font metrics
       //