From ec5d8e3e1203f4c9d8e8edee21fb11785e0271ff Mon Sep 17 00:00:00 2001
From: Joshua Gould <jgould@broadinstitute.org>
Date: Tue, 17 May 2016 16:21:10 -0400
Subject: [PATCH] check for null

---
 src/util/util.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/util.js b/src/util/util.js
index b405315..75c94bd 100644
--- a/src/util/util.js
+++ b/src/util/util.js
@@ -1318,7 +1318,7 @@ morpheus.Util.ExactTermPredicate = function (field, term) {
 };
 morpheus.Util.ExactTermPredicate.prototype = {
 	accept: function (value) {
-		return value.toLowerCase && value.toLowerCase() === this.text;
+		return value && value.toLowerCase && value.toLowerCase() === this.text;
 	},
 	getField: function () {
 		return this.field;
-- 
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