From ab487a051c4224e1edd8b38ab861bb4f1f7a7c11 Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Fri, 24 Feb 2012 10:07:32 -0500
Subject: [PATCH] Don't do bolding if width is not readable (e.g., inside a
 container with display:none).  Resolves issue #194.

---
 extensions/TeX/autobold.js          | 2 +-
 unpacked/extensions/TeX/autobold.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/extensions/TeX/autobold.js b/extensions/TeX/autobold.js
index 48af90a3b..71cc46f11 100644
--- a/extensions/TeX/autobold.js
+++ b/extensions/TeX/autobold.js
@@ -12,5 +12,5 @@
  *      http://www.apache.org/licenses/LICENSE-2.0
  */
 
-MathJax.Extension["TeX/autobold"]={version:"2.0"};MathJax.Hub.Register.StartupHook("TeX Jax Ready",function(){var a=MathJax.InputJax.TeX;a.prefilterHooks.Add(function(d){var c=d.script.parentNode.insertBefore(document.createElement("span"),d.script);c.visibility="hidden";c.style.fontFamily="Times, serif";c.appendChild(document.createTextNode("ABCXYZabcxyz"));var b=c.offsetWidth;c.style.fontWeight="bold";if(c.offsetWidth===b){d.math="\\boldsymbol{"+d.math+"}"}c.parentNode.removeChild(c)});MathJax.Hub.Startup.signal.Post("TeX autobold Ready")});MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/autobold.js");
+MathJax.Extension["TeX/autobold"]={version:"2.0"};MathJax.Hub.Register.StartupHook("TeX Jax Ready",function(){var a=MathJax.InputJax.TeX;a.prefilterHooks.Add(function(d){var c=d.script.parentNode.insertBefore(document.createElement("span"),d.script);c.visibility="hidden";c.style.fontFamily="Times, serif";c.appendChild(document.createTextNode("ABCXYZabcxyz"));var b=c.offsetWidth;c.style.fontWeight="bold";if(b&&c.offsetWidth===b){d.math="\\boldsymbol{"+d.math+"}"}c.parentNode.removeChild(c)});MathJax.Hub.Startup.signal.Post("TeX autobold Ready")});MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/autobold.js");
 
diff --git a/unpacked/extensions/TeX/autobold.js b/unpacked/extensions/TeX/autobold.js
index f5c595c36..2e26ddac0 100644
--- a/unpacked/extensions/TeX/autobold.js
+++ b/unpacked/extensions/TeX/autobold.js
@@ -34,7 +34,7 @@ MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
     span.appendChild(document.createTextNode("ABCXYZabcxyz"));
     var W = span.offsetWidth;
     span.style.fontWeight = "bold";
-    if (span.offsetWidth === W) {data.math = "\\boldsymbol{"+data.math+"}"}
+    if (W && span.offsetWidth === W) {data.math = "\\boldsymbol{"+data.math+"}"}
     span.parentNode.removeChild(span);
   });