From d3eec1386a034ddf1742e128dc2c613781bfde1f Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Mon, 15 Aug 2016 15:51:42 -0400
Subject: [PATCH] One more test for math being removed from the document (Issue
 1456).

---
 unpacked/jax/output/CommonHTML/jax.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/unpacked/jax/output/CommonHTML/jax.js b/unpacked/jax/output/CommonHTML/jax.js
index 6a3f82bbb..707999c31 100644
--- a/unpacked/jax/output/CommonHTML/jax.js
+++ b/unpacked/jax/output/CommonHTML/jax.js
@@ -502,6 +502,7 @@
       //
       var jax = script.MathJax.elementJax, math = jax.root,
           node = document.getElementById(jax.inputID+"-Frame");
+      if (!node) return;
       this.getMetrics(jax);
       if (this.scale !== 1) node.style.fontSize = jax.CHTML.fontSize;
       //